The Best Thing to Happen to
the French Fry!
For 50 years, the self-unloading EAGLE BRIDGE® has delivered potatoes and other agricultural commodities safely and efficiently. From custom belt trailers, to service and parts, pre-owned equipment, rentals, and top-tier financing* on all equipment types, Trinity Trailer provides the complete solution.
Plant Essential Oils: A New Option For Controlling Root-Knot Nematodes Beyond Fumigants
Propane Proves Itself A High Per forming, Lower Emission Solution For Water Management On Potato Farms
Montana State Seed Potato Certification Program
Seed Starts With Healthy Soil Life
You’re an owner. And ownership pays.
Put earnings back in your pocket with competitive borrowing rates and an annual cash dividend through our Patronage Program.
In 2024, AgWest paid the equivalent of 1.25% of eligible average daily loan balances back to our customer-owners.
Published 13 times a year by Harris Publishing Inc.
SUBSCRIPTIONS:
U.S. and Possessions
$24.00 per year, International $120.00 per year. To subscribe call (800) 638-0135
Copyright 2024 Harris Publishing Inc.
All rights reserved.
Reproduction in whole or in part without permission is prohibited. Back issues available at $5 per copy. Limited quantities. Publisher not responsible for content of materials submitted.
PRESIDENT Jason Harris
VICE PRESIDENT Chuck Harris
VICE PRESIDENT Ryan Harris TREASURER Clayton Ward
Canadian Publisher’s reement No. 40606038, Customer No. 7004671.
Mailed under a standard rate mailing permit at Idaho Falls, Idaho, and at additional mailing offices.
Also Publishers of SugarProducer
PUBLISHER
Jason Harris
EDITOR
Lane Lindstrom lane@potatogrower.com
ADVERTISING DIRECTOR
Rob Erickson rob.erickson@potatogrower.com
PRODUCTION
Sandon Wixom
GRAPHIC ARTISTS
Laci Thompson
CIRCULATION
Chuck Harris
IT DEPARTMENT
Chuck Harris
ACCOUNTING
Clayton Ward
CALENDAR
JUNE 3 AND 5
12th Annual Ag World Golf Classic
June 3 – Canyon Lake Golf Course, Kennewick, Washington
June 5 – The Links at Moses Pointe, Moses Lake, Washington https://agworldgolf.com
JUNE 12
Idaho Potato Industry PAC Golf Scramble
Riverside Golf Course
Pocatello, Idaho www.idahoshippers.org/event/pac-golfscramble/
JUNE 15-17
Washington Potato & Onion Association Convention
Coeur d’Alene Resort
Coeur d’Alene, Idaho http://wapotatoonion.com
JUNE 17-18
United Potato Growers Of America Crop Transition Conference
Crowne Plaza Suites – MSP Bloomington, Minnesota www.unitedpotatousa.com
FOUNDED BY Darryl Harris
CORPORATE OFFICES:
HARRIS PUBLISHING INC. 190 E 1st Street Idaho Falls, ID 83401 208-523-1500 www.potatogrower.com
NATIONAL POTATO COUNCIL (202) 682-9456 www.nationalpotatocouncil.org
POTATOES USA (303) 369-7783 www.potatoesusa.com
UNITED POTATO GROWERS OF AMERICA (801) 266-5050 www.unitedpotatousa.com
ALLIANCE FOR POTATO RESEARCH & EDUCATION www.apre.org
POTATO ASSOCIATION OF AMERICA (734) 239-8022 www.potatoassociation.org
Printed in Idaho Falls, ID by Falls Printing rob.erickson@fallsprinting.com
INTERNATIONAL POTATO CENTER www.cipotato.org
JUNE 20
Nolan Sales Auction (of potato equipment)
N5112 Hill Road Bryant, Wisconsin (800) 472-0290
JUNE 24
University of Idaho Field Day –Aberdeen
UI Aberdeen Research and Extension Center
Aberdeen, Idaho brentb@uidaho.edu
JUNE 26
Washington State University Potato Field Day
Othello IAREC Othello, Washington Potatoes.wsu.edu
JUNE 24-27
National Potato Council Summer Meeting
Coeur d’Alene Resort
Coeur d’Alene, Idaho www.nationalpotatocouncil.org
JUNE 25
University of Idaho Field Day –Kimberly
UI Kimberly Research and Extension Center
Kimberly, Idaho amjackson@uidaho.edu
JULY 12-20
Maine Potato Blossom Festival
Fort Fairfield, Maine Mainepotatoblossomfestival.com
JULY 14
Potato Grower Magazine Golf Tournament
Idaho Falls Country Club Idaho Falls, Idaho www.potatogrower.com/golf
JULY 15-17
Potato Sustainability Alliance Summer Symposium
The Culinary Institute of Canada Charlottetown, Prince Edward Island, Canada https://potatosustainability.org/
JULY 27-31
Potato Association Of America Annual Meeting
Madison, Wisconsin potatoassociation.org
AUGUST 3-6
Soil & Water Conservation Society Annual Conference
Hilton Orange County Costa Mesa, California www.swcs.org/events
AUGUST 13-14
Idaho Irrigation Equipment Association Summer Meeting
Twin Falls, Idaho idahoirrigationequipmentassociation.org
Calcium phosphite and metabolites
Potatoes, peanuts, corn, soybeans, potatoes, vines, stone pome fruits, strawberries (suspended concentrate)
Apply at tuber initiation through early bulking Recommended at 32 fl oz/A
NUTRIGENOMIC PERFORMANCE ADVANTAGES
shows that aCalsa SC amplifies protein synthesis, starch and sucrose pathways, and provides comprehensive protection against environmental stress, potato growers to achieve maximum yield potential.
For more information visit
Suite 1600 | Tampa, FL 33602 connect@helmagro.com
HELM AG. ©2025 HELM Agro US, Inc. aCalsa SC_Fact Sheet_Potatoes
NEW PRODUCTS
Loveland Products, Ascribe Bioscience Expand Collaboration To Develop New Phytalix-Based Solutions For U.S. Row Crops
Loveland Products, Inc., the proprietary products company for Nutrien Ag Solutions and a leading provider of crop input solutions, and Ascribe Bioscience, the developer of the biofungicide Phytalix, announced the expansion of their collaboration in the U.S. market to include additional proprietary Phytalix premixes.
This strategic initiative with Ascribe is designed to further strengthen Loveland Products’ market-leading biological platform.
This builds on the companies’ successful collaboration, announced in 2023, which focused on products for other U.S. row crops, including cereals, corn, and soybeans. The expanded relationship is a result of strong field trial results over three seasons and a shared commitment to bringing innovative and effective crop protection tools to growers.
Phytalix, a biofungicide, is derived from small molecules in the soil microbiome that prime the plant’s innate defenses. It offers broad-spectrum disease control, improved plant health, and a novel mode of action for resistance management. When integrated into fungicide blends, Phytalix delivers a new standard of performance that can meet or exceed the effectiveness of premium multi-way fungicide products.
The new products will expand Loveland’s Phytalixbased offerings, providing additional value-added products for U.S. row crop growers. Product submissions to the EPA in the U.S. are anticipated by the end of 2025.
This collaboration is part of a broader effort by
Nutrien Ag Solutions to build a differentiated portfolio of proprietary crop protection products through its Loveland Products brand. Loveland Products’ research and development team has concentrated its efforts on thoroughly understanding what the technologies are doing, both biologically and chemically, allowing them to develop predictable solutions with specific modes of action.
For more information, visit nutrienagsolutions. com and lovelandproducts.com.
Carbon Robotics Introduces First And Only Tractor Autonomy Solution With Real-Time Remote Supervision, Control
Carbon Robotics, the leader in AI-powered farming, announced the launch of Carbon AutoTractor, a breakthrough tractor autonomy solution. Powered by Carbon AI, Carbon AutoTractor is installed on existing tractors and is remotely monitored by Carbon Robotics operators, who handle interventions in real time to ensure seamless operation.
Carbon AutoTractor delivers reliable, uninterrupted autonomous tractor operation — helping farmers increase productivity, reduce labor dependency, and scale operations.
Developed with direct feedback from farmers, Carbon AutoTractor addresses the key barriers that have prevented the widespread adoption of tractor autonomy: frequent stoppages requiring farmer intervention, complex supervision and management, and unreliable solutions not built for 24/7 production operations.
Carbon AutoTractor delivers autonomy farmers can trust by combining two core components: the Carbon Autonomy Kit and the Remote Operations Control Center (ROCC). Unlike other autonomy solutions, Carbon AutoTractor is continuously monitored by trained operators who can intervene immediately when something unexpected arises — like debris, wildlife, or irrigation pipes. That means fewer stoppages, no in-field resets, and the confidence that work keeps moving, even when conditions don’t go as planned.
Products that Profit
Take Control of your ROI with BRANDT® Smart Quatro® Plus
BRANDT Smart Quatro Plus isn’t just a foliar solution – it’s an investment in maximizing crop performance. With a complete package including B, Mg, Mo and Zn, it provides crops with the nutrients they need to thrive. The result? Healthier crops and better yields. Take Control with BRANDT Smart Quatro Plus and watch your profits grow.
NEW PRODUCTS
Simple to install and run, the Carbon Autonomy Kit is initially compatible with John Deere 6R and 8R Series tractors, requiring no permanent modifications and installation completed in less than 24 hours. Once installed, tractors can toggle between autonomous and manual operation as needed.
The system integrates seamlessly with Carbon Robotics’ LaserWeeder, automatically adjusting speed to optimize weeding performance based on weed type, size, and density — boosting coverage by up to 20 percent compared to manually operated systems.
Beyond precision weeding, Carbon AutoTractor autonomously performs ground preparation tasks, including tilling, plowing, cultivating, ripping, discing, listing, mulching, and mowing — eliminating the need for an in-cab driver.
The system features multiple layers of built-in safety, including RTK-accurate GPS, 360-degree cameras, radar-based safety sensors, and physical, remote, and mobile e-stops — all connected via a high-speed, low-latency satellite link for instant responsiveness and oversight.
With AI-powered decision-making, seamless integration across field tasks, and live operator surveillance, Carbon AutoTractor offers farmers a reliable, scalable path to autonomy. A flexible, payper-hour pricing model makes this technology more accessible and cost-effective.
For more information, visit https:// carbonrobotics.com.
2025 Kawasaki Brute Force 750, Brute Force 750 EPS, Brute Force 750 EPS LE All-Terrain Vehicles
In the world of off-road adventures, the Brute Force® name has long been associated with reliability, functionality, and sporting ATV prowess. For 2025, the Kawasaki Brute Force 750 returns as a powerhouse for Kawasaki in the ATV class.
Underneath its rugged exterior lies the heart of the Brute Force 750 all-terrain vehicle: a highperformance 749cc V-Twin engine and a chassis known for its durability. The 2025 Brute Force ATV embraces a tough and rugged styling that radiates power.
Just last year, the Brute Force 750 received several new updates, including a state-of-the-art TFT color instrumentation, complete LED lighting, integrated handlebar-mounted LED light, and the addition of rugged racks, both in the front and rear. Thanks to all the great features found on the 2025 Brute Force 750, this machine stands poised and ready to conquer a range of challenges on the off-road terrain.
2025 Brute Force 750 Highlights
• High-performance 749cc V-twin four-stroke engine
• 4.3-inch full-color TFT display
• LED lighting featuring handlebar-mounted LED pod light
• Rugged, plastic cargo rack covers w/KQR system compatibility (EPS and LE models)
Revv-uP™ & Revv-uP™ G are made up of two specific plant growth promoting rhizobacteria (PGPRs) in spore form. Once the PGPRs become active, they help convert applied phosphates, or phosphates tied up in the soil, into soluble, plant available forms, maximizing uptake, utilization, and agronomic ROI!
Spudnik 48” Chain—Belt
Spudnik Tare Elevator 24’ x 24” Swing Spudnik 25’ x 214” Chain Belt
48’ x 30” Chain Belt Stingers
40’ x 30” Chain Belt Extend
CONVEYORS
SORTING
STI
CUTTERS Better
FIELD JD
GRAIN & FERT
MISC
RD
NEW PRODUCTS
• Handguards (LE models only)
• Selectable 2WD/4WD with variable front differential lock control
• 1,250-lb. towing capacity
• Speed-sensitive Electric Power Steering (EPS and LE models)
2025
Model Variations
Kawasaki Brute Force® 750
Color: Timberline Green
MSRP: $9,999
Availability: Now
Kawasaki Brute Force® 750 EPS LE
Color: Pearl Matte Sage Green, Cypher Camo Gray
MSRP: $11,999
Availability: Now
Kawasaki Brute Force® 750 EPS
Color: Grayish Blue
MSRP: $11,399
Availability: Now
Kawasaki Brute Force® 750 EPS LE Camo
Color: TRUETIMBER® STRATA
MSRP: $11,999
Availability: Now
For more information, visit www.kawasaki.com.
John Deere Releases Sprayer Updates To Maximize Yields, Minimize Costs
John Deere updates to the John Deere and Hagie sprayer lineup. These updates were developed to give farmers cleaner fields that have less weed competition, leading to more yield potential.
SEE
& SPRAY UPDATES
See & Spray Select Variable Rate
See & Spray technology continues to develop and provide additional options for farmers looking for ways to reduce inputs and improve targeted weed control. See & Spray Select has historically been used to control
weeds in fallow fields. New variable rate capabilities unlock significant opportunity for precise application and product savings in later season fungicide, desiccant, pre-harvest passes and more. Farmers can now see the percentage of biomass each camera detects throughout the field. Each camera rates the amount of green biomass detected and varies the volume of product applied by percentage. Farmers then adjust how much product they wish to apply on an individual nozzle level based on the green biomass percentages, giving them the ability to apply product where it is needed most. Variable Rate capabilities will require a G5 or G5Plus CommandCenter. See & Spray Select will be available from the factory on model year 2026 John Deere 400 and 600 series sprayers with 90-ft. (27.4 m), 100-ft. (30.5 m) or 120-ft. (36.6 m) steel booms. See & Spray Select also will be available as a precision upgrade kit for model year 2018+ John Deere sprayers with ExactApply and a 120-ft. (36.6 m) steel boom.
AUTOTRAC UPDATES
Preventing crop damage is key during the application process. Now, John Deere application equipment has two new options available to reduce operator stress and ensure a more seamless application experience. AutoTrac Turn Automation (ATTA) and AutoTrac Vision 2.0 help provide consistent passes across the field with each application.
AUTOTRAC TURN AUTOMATION
This technology is now available on John Deere and Hagie sprayers, helping ensure consistent and accurate turns at the end of each pass, all day, every day. ATTA accurately steers the sprayer along a guidance line at the end of a field pass, smoothly guiding the machine into the next section of the field. This technology allows the sprayer operator to focus on managing the sprayer booms, adjusting their height and position in relation to obstacles in and around the field, while also controlling the machine’s speed. ATTA allows the operator to plan the shape of their turns while helping reduce crop trampling and leading to overall improved yield. ATTA is compatible with John Deere 400 & 600 series self-propelled sprayers, 800R floaters, and Hagie STS12, STS16 and STS20 sprayers, model year 2022 and newer. This new feature is included with Automation 4.0 on Gen4 displays and the G5 Advanced license for machines that have a G5 display.
EXACTAPPLY UPDATES
Technology improvement to help farmers more accurately apply product is key in helping improve yields. John Deere has introduced ExactApply Variable Rate capabilities — including Multi-Rate across the boom with AutoSelect Pulsing (and A+B pulse width modulation nozzle switching). With AutoSelect pulsing enabled, sprayer operators can now vary multiple application rates across the entire boom — up to 11 unique sections, leading to more precise product placement. Operators will also have increased rate range for variable rate prescriptions and curve compensation. This technology is available as a software update for model year 2023-2025 sprayers, and model year 2026 will come factory installed with updated software features and functionalities.
AROUND THE VINE
Wisconsin Senate Passes Testin’s Bipartisan Seed Potato Legislation
Sen. Patrick Testin (R-Stevens Point) released the following statement after the Wisconsin Senate passed his bipartisan legislation that will help ensure the state remains a national leader in the production of potatoes:
“With last year’s total acreage valued at $320 million, potatoes are one of the most lucrative cash crops we grow here in our state. In fact, Wisconsin is the third largest potato producer in the country and a top 5 state in generating seed potatoes.
“Part of the reason why Wisconsin’s potato industry has remained so strong over the decades is the use of clean, pathogen-free seed potatoes. These seeds are certified by the Wisconsin Seed Potato Certification Program to make certain that our yearly potato crop stays among the best of the best.
“But, just like in any industry, there are always a few bad actors out there who do not follow the rules. Such was the case recently when a couple of residents planted seed potatoes in violation of state statutes and endangered the viability of the entire crop across Wisconsin. However, under our state’s existing framework, the Department of Agriculture, Trade and
Consumer Protection (DATCP) did not have the teeth to successfully enforce our seed potato laws.
“Instead of implementing new regulations on potato farmers, Senate Bill 164 takes a practical and proactive approach by increasing penalties and providing DATCP with clear enforcement mechanisms to investigate and contain potential threats to certified seed potato crops. Ensuring their health, traceability and integrity are vital to maintaining both the quality and reputation of Wisconsin-grown potatoes.”
Nutrien’s Champaign, IL, Innovation Farm Celebrates The Opening Of New
On-Site Facility
Nutrien Ag Solutions is ushering in a new chapter at its Innovation Farm location in Champaign, Illinois, with a new facility that showcases the Nutrien Agronomy team’s commitment to research at the scale of farming. The facility will host the 16-person onsite team representing differentiated agronomic capabilities from
AROUND THE VINE
Nutrien Ag Solutions. The building will serve as a hub to host events such as trainings, team meetings and customer engagements. The team moved into the facility in November and started hosting events this January, already holding 18 events in the new space.
While the building is an excellent venue for hosting events and trainings, the main purpose of the facility is to accelerate the adoption of new technology for its grower customers and retail locations, focusing on whole acre solutions. The Innovation Farm trials demonstrate the integration of products, practices, and technology to create confidence in recommendations that can be shared with Nutrien Ag Solutions’ team of agronomists and crop consultants across the U.S. and Canada, as well as with the broader agriculture industry.
Nutrien purchased the 282 acres of farmland in 2019 with the vision to transform the land into the center it is today. For the past six years, the Champaign team has been cultivating the soil, conducting research at the speed of farming, and even hosted the national award-winning FFA project for Nutrien Ag Solutions’ first ever student ambassador, Avery Watson.
A ribbon-cutting ceremony was held March 20 to celebrate the beginning of this new era for the Champaign Innovation Farm. Nutrien Ag Solutions employees, local growers, supplier representatives, state legislators, community members, and members of the ag media were in attendance. Following the ribbon-cutting ceremony, attendees were hosted at the farm for lunch and visited stations that demonstrated the various focuses of the farm, such as the drones and RTK precision-enabled machinery being deployed on the farm’s trials, highlights from Nutrien Ag Solutions’ proprietary products shelves, weather services, and precision agronomy programs.
For more information, visit nutrienagsolutions.com.
Strafford, Missouri Welcomes New $13.5M John Deere Reman Facility
John Deere is investing $13.5 million to expand its Strafford, MO, Remanufacturing facility by 120,000 square feet. Kevin Schrag, the factory manager, sums it
up perfectly, “That’s a pretty big deal!”
WHAT IS REMANUFACTURING?
Remanufacturing is all about taking used, worn-out products and transforming them into like-new condition. This involves disassembling, cleaning, processing and qualifying the raw material, known as “core.” The core can be anything from large components like axles and engines to small parts like fuel nozzles and electronic displays. If a core doesn’t meet John Deere standards, it’s scrapped.
WHY IT MATTERS
The goal is to use as much core as possible without compromising on quality. Many parts, like bearings and seals, are always replaced with original John Deere parts.
With the new building, John Deere will start collecting core early in the program, even before remanufacturing certain engines. This allows them to build up a pool of parts and launch programs efficiently.
BENEFITS FOR DEALERS AND CUSTOMERS
For customers, remanufactured products are up to 30 percent cheaper than new ones, without sacrificing performance or warranty.
This cost-effective solution helps dealers too, especially during technician shortages. Replacing a complete engine can save a dealership an average of 40 hours, allowing them to serve more customers quickly and efficiently.
John Deere Reman is continuously adding new products. Recently, it launched motor grader axles, multiple Final Tier 4 engine models, turbos and engine controllers. Last year alone, it introduced $20 million worth of new products, bringing the total to 2,300 unique part numbers.
For more information, visit deere.com.
AGCO Prevails In Patent Dispute Over Momentum Planters
AGCO is obviously pleased with the recent decision by the United States Patent and Trademark Office’s (USPTO) Patent Trial and Appeal Board (PTAB) to uphold one of the company’s patents for Momentum planters. The ruling denied Brazilian manufacturer Stara’s petition for an Inter Partes Review (IPR), which reinforces the strength of AGCO’s patents throughout the world.
“AGCO’s Farmer-First focus drives our teams to create products that meet the needs of farmers around the world,” said Kelvin Bennett, AGCO senior vice president, Engineering. “This ruling validates the integrity of AGCO’s intellectual property rights so we can continue providing farmers with agriculture’s most innovative and effective solutions.”
For more information on the Momentum planter, visit Fendt.com.
Kang Xia Named MSU AgBioResearch Associate Director
Kang Xia has been named associate director of Michigan State University AgBioResearch. Her appointment
began April 14.
Xia, who most recently served as associate director of the Virginia Agricultural Experiment Station (VAES) at Virginia Tech, joins MSU AgBioResearch director George Smith and associate director James Averill in leading MSU’s long-standing research unit dedicated to discovering dynamic solutions for food systems and the environment.
As associate director, Xia will promote the full spectrum of fundamental and applied research across MSU disciplines, working closely with MSU AgBioResearch-affiliated faculty to build synergies for future collaborations, identify research initiatives, seek funding opportunities and support team efforts in pursuing large grants and investments.
She’ll also connect with external partners and stakeholders within the Michigan agricultural and natural resources communities to communicate impacts delivered by MSU AgBioResearch scientists and gather input that will help inform decision-making on prospective research activities and opportunities to work together.
“I’ve been in a faculty role since 1998, so I understand the challenges faculty face and what makes them excited and proud,” Xia said. “What I want to do in this administrative role is to pay it back to faculty. I’m committed to supporting them, especially the younger faculty, in overcoming their challenges and achieving their academic aspirations.”
Xia earned a bachelor’s degree in soil chemistry from Beijing Agricultural University (now China Agricultural University), a master’s degree in soil chemistry from Louisiana State University, and a doctoral degree with a major in soil chemistry and minor in chemistry from the University of Wisconsin-Madison.
She’s held faculty positions at Kansas State University, University of Georgia, Mississippi State University and Virginia Tech. During her academic career, she’s led a successful multidisciplinary research program as a principal and co-principal investigator that was externally funded for more than $19 million, published in high-impact peer-reviewed journals and taught several undergraduate and graduate courses.
For more information, visit agbioresearch.msu.edu.
Mid-Season GET THE MOST
FROM YOUR Management
FOCUS ON PEST AND DISEASE MANAGEMENT MID-SEASON TO ENSURE CROP THRIVES.
Potatoes are a challenging crop to produce — because they are highly managed, potato growers have plenty on their minds. In early summer, growers should focus on two key areas: pest and disease control, says Curtis Rainbolt, technical service representative in agricultural solutions for BASF.
Pests
Insect pests can vary throughout the country, but the Colorado Potato Beetle (CPB) is a menace in many areas. Controlling these beetles requires regular scouting, sanitation and chemical and cultural controls, says Rainbolt.
Luckily, the CPB is somewhat predictable. The beetle overwinters in the previous year’s potato fields, where it fed as larva. It moves to fencerows and waterways at the field edges to burrow into the soil. When it emerges once the soil warms up, it begins feeding immediately.
Although both adults and larvae feed on potato leaves, the third and fourth instar larvae do the most damage, he adds. The larvae can defoliate a plant as quickly as one to two days.
(Above) The Colorado Potato Beetle seems to be a universal pest in potatoes and scouting is key to staying ahead of these destructive pests, which can defoliate a potato plant in as little as 1-2 days.
(Left) When it comes to mid-season management in potato fields, timing is critical. BASF’s Curtis Rainbolt points out that once potatoes start to flower, they can’t tolerate much defoliation. Photo courtesy of BASF.
“Potatoes can be defoliated by as much as 30 percent before flowering or during tuber fills, and yields will stay unaffected. However, when potatoes flower, they cannot tolerate much defoliation,” says Rainbolt.
Crop rotation is an effective means to reduce CPB pressure. When CPB emerges in a field planted with a non-host crop, like corn, soybeans, alfalfa or sorghum, they are forced to travel to another potato field. If that potato field is at least half a mile away, only a few beetles will reach the new field.
Systemic insecticides in potatoes will help control early-season CPB populations. Do not use disruptive broad-spectrum foliar products, such as pyrethroid insecticides, for CPB control after June 15. (1)
The CPB is notorious for developing insecticide resistance, so Rainbolt recommends rotating insecticide modes of action. Contact your BASF representative or agronomist for help in rotating classes.
Diseases
In June, many growing regions will be approaching the row-closure growth stage, coinciding with the onset of tuber initiation.
“It’s a key time to monitor nitrogen and other nutrient levels and apply accordingly,” says Rainbolt. “It’s also time to make a plan for disease control at row-closure and subsequent fungicide applications. Even though diseases won’t visibly appear until much later, application time is now.”
Jeff Miller, research scientist at Miller Research, says, “Early blight and White mold are two diseases that most growers can count on seeing just about every year.”
One important step in mid-season management is getting out into the field to scout for any potential problems. Experts recommend scouting often.
Miller explains that both diseases can significantly reduce yield. Early blight and its relative brown spot are foliar diseases. These leaf spots can cause the leaves to die prematurely. White mold can cause the stems to die, a lesion to form on the stem, and the plant can’t put any more carbohydrates down to the tuber.
If left unchecked, early blight can reduce yields by as much as 20 percent (2), and white mold can cause losses of up to 50 percent. (3) To make matters worse, tried-and-true disease control methods are becoming less effective due to increased resistance. (4)
“One of my favorite things about this industry is that the growers and agronomists working in potatoes are very skilled and knowledgeable. They are constantly looking for new tools to produce a more productive and sustainable crop,” says Rainbolt.
With his research facility, Miller constantly tests those tools.
Miller says, “We recommend that growers use what I would call a premium-type fungicide like Endura PRO fungicide early in the season — so right around the time of row closure – and then again two weeks later. And in our research plots in the semi-arid conditions of southern Idaho, we have found that to be the most effective way of controlling the disease.”
He recommends following the premium-type fungicides with protectant-type fungicides. Depending on the growing area, the total number of applications will vary considerably.
“Through the years, as we’ve looked at the severity of early blight and its effect on yield, we can almost on average guarantee about a 4-5 percent increase by applying these fungicides,” Miller adds. “That has been very, very consistent. Even in years where the early blight doesn’t seem to be too severe, using these fungicides does provide a yield increase.”
Endura PRO fungicide combines two powerful active ingredients for reliable, long-lasting and more complete control of early blight and white mold to help growers maximize their yield and profitability.
Potato growers are skilled at managing all the details that go into a challenging crop. Focusing on these two key areas can simplify mid-season management.
Learn how Endura PRO fungicide can simplify your disease management by scanning this QR code.
For more information, visit https://agriculture. basf.us/crop-protection/crops/potato.html.
REFERENCES
(1) Schreiber, Alan; Jensen, Andrew; Rondon, Silvia; Wenninger Erik; Reitz, Stuart; Waters, Tim. 2023 Integrated Pest Management Guidelines for Insects and Mites in Idaho, Oregon and Washington Potatoes. February 2023.
(2) Wharton, Phillip and Wood, Elisabeth (2013). Early blight biology and control in potatoes. University of Idaho Extension.
(3) Wharton, Phillip and Wood, Elisabeth (2013). White mold of potatoes. University of Idaho Extension.
(4) Lucas, John; Hawkins, Nichola; Fraaije, Bart (2015). “Chapter Two - The Evolution of Fungicide Resistance” Advances in Applied Microbiology, Volume 90:29-92. Always read and follow label directions. Endura is a registered trademark of BASF.
BUYERS’ GUIDE HARVEST
Summer is flying by. You’re checking your potatoes on a near daily basis to make sure all is going well with the crop. And it’s time to start thinking and planning for the harvest. As you’re well aware, harvest is the busiest time of year for potato growers and it’s imperative that you’re prepared with quality, reliable equipment that will take good care of the fruits of your labors.
the correct settings. Even in wet weather conditions, this gentle giant will soldier on.
The Puma 4.0 is equipped with a 469 hp Volvo engine that will never fail you and an 8-ton bunker which can be unloaded while driving.
You can confidently rely on AVR’s latest self-propelled harvester to help meet your current farming challenges. This heavy-duty, reliable and user-friendly harvester will process up to 100 tonnes of potatoes per hour with all
It is possible to equip the machine with the All Conditions Control digging unit, which allows you to opt to harvest with or without diabolos, depending on the circumstances. The diabolo can be hydraulically controlled from the cabin to regulate the depth. This way you can harvest without exerting any pressure on the ridges, which improves harvesting quality and comfort for the driver. Also at higher speeds, the control – and as a consequence the whole machine – remains remarkably stable.
This machine can be connected to the internet which allows for machine data to be transmitted to AVR Connect. AVR Connect is an online reporting tool for your machine activities, and an online collection system for all your machine data, both on and off the field. AVR Connect offers you more data and consequently a more effective use of your machine and resources.
Logan Potato Equipment
(800) 279-2689
www.loganpotato.com
Logan Evenflow Tub
HARVEST
hydraulic adjust.
The new 2024 Logan Evenflow Tub offers a number of new upgrades with innovative designs for metering a consistent continuous flow to downstream planting or post harvest equipment, making it one of the finest in the industry.
The 54-inch elevating conveyor and 36- to 72-inch discharge belt sizes offer a large range of throughputs while utilizing new features like efficient electric drives for your conveyors and externally mounted carry up and carry back rollers for easy replacement. The machine has many options for customizing to your operation and is designed heavy for long lasting use.
Logan Bin Piler
Logan’s 2025 Bin Piler is designed for years of excellent performance in three models – 36-, 42- and 48-foot -- and has numerous capabilities new to the industry. The design of the machine was created with the flexibility to transload and storage pile, with a usable boom of 53 feet. There is also the option of a two conveyor boom design or a continuous single belt-bridge boom design.
A feature-rich hydraulic system and new 2-way remote control belly pack assist troubleshooting problems, provide sensor feedback and adjust system speed with load sense, using proportional valves for precise boom control and with manual control backup switches.
The main frame of the machine is robust with large traction tires, dual tow/no tow gearboxes that completely disengage for safe towing, trouble-free use. Some new features include a hydraulic traveling weight box for optimal towing, extra deep troughing of the boom conveyors, providing large volume and limited product skinning on the conveyor sidewalls.
Options also include hydraulic hitch, all VFD motor controls, boom end tip down, auto speed control and pup hanger with
Lockwood Mfg. (800) 247-7335 www.lockwoodmfg.com
774 Harvester
The 774 Harvester took the industry by storm recently and like so many other pieces of equipment, improvements are made as feedback from growers is provided. New for 2025 will be enhancements to the airflow of the vine blower to be more efficient and directed exactly where it should be. Lockwood has also added the ability to dial in your over-ride chain for the most efficient vine removal yet. The rear cross on the 774 is now fully dynamic, allowing for the shortest drops and the highest capacity. Some simple adjustments allow you to fine tune this machine to your operation. Inspecting the rear cross has never been easier with the addition of a door that you can simply open and step right in to inspect your machine. No more crawling.
Advanced Farm Equipment, LLC (877) 287-5711
www.lenco-harvesters.com
72-inch Air-head Harvester
AFE’s computer-automated Lenco airhead now separates rocks from potatoes with maximum possible efficiency regardless of field conditions, and with less attention from the harvester operator. On-board sensors gather and relay critical data to the harvester’s central computer, and airhead speed is adjusted constantly to maximize separation and minimize bruise. Your operator can now focus on other critical tasks, like loading potatoes into a moving truck.
U.S. and Canadian potato farmers have reported 20 percent greater capacity with 0 to 2 percent bruise in very rocky
HELPS CONTROL RESISTANT WEEDS
A DIFFERENT MODE OF ACTION WITH GREATER IN-SEASON FLEXIBILITY
PRE-EMERGENT WEED CONTROL
©2025 Tessenderlo Kerley, Inc. All rights reserved. Tessenderlo Kerley®, NovaSource®, Linex®, and Sectagon® are registered trademarks of Tessenderlo Kerley, Inc.
HARVEST
BUYERS’ GUIDE
conditions from the new 72- and 65-inch automated airhead harvesters. Advanced computer controls, remote programming updates, and IoT connection installed on the world’s most durable frames mean a high-capacity Lenco harvester will operate at peak efficiency for decades.
Apollo Tracked Windrower
U.S. and Canadian potato farmers asked AFE to design and build a windrower that can keep up with the company’s high-capacity automated airhead harvester. The Apollo six- and eight-row windrowers with tracks and Soil Savers are the answer to that request.
Lenco Soil Savers are designed to dig 30 percent less soil and rocks than a conventional windrower, allowing for cleaner potatoes at greater ground speeds. Mid-mounted steerable tracks reduce hitch weight dramatically, and the track system floats better than tires in any soil condition. Apollo windrowers can discharge potatoes into one or two rows, and to the left or right side with the touch of a button.
Spudnik Equipment Company (208) 785-0480
www.spudnik.com
6631-4 AirSep Harvester
The 6631-4 AirSep Harvester is built for efficiency, precision and productivity in the field. This four-row harvester funnels potatoes into a three-row AirSep system, utilizing advanced airflow technology to separate dirt and trash in the field. A 105-inch separation system — placed before the AirSep chamber — enhances the cleaning process by ensuring even distribution and maximizing efficiency. This design allows growers to eliminate excess material right in the field, reducing the need for cleaning at the storage facility and streamlining the overall harvest. Equipped with depth control wheels, the 6631-4 maintains optimal digging depth across changing terrain, letting the operator focus on boom operation and truck loading rather than constant depth adjustments. With its intelligent design and field-first cleaning power, the 6631-4 helps you deliver a cleaner product, faster and with less work at storage.
4835 Crop Cart
HARVEST
Introduced in 2014 to handle many different crops in various conditions, the Crop Cart has changed the way farms operate. With many different attachments, the Crop Cart is designed to be utilized in every season. The attachments include a compost/ fertilizer spreader, seed loader, grain auger, potato boom and sugarbeet boom. The Crop Cart has the capacity to hold up to 700 sacks (35 tons). Using a Crop Cart reduces the need to have trucks in the field to continue planting, harvesting and transporting productively. The Crop Cart is highly adaptable to increase farm efficiency and profitability.
Mayo Mfg. Co. (218) 773-1234
www.mayomfg.com
Portable Optical Sorter
Mayo Mfg. has successfully developed the Portable Optical Sorter. Growers and processors can ship and store debris-free potatoes. Working with Tomra, the leader in potato optical sorting, Mayo and Harriston have introduced this new innovation. This is new generation technology for cleaning field and storage potatoes. Operating in a range of conditions and potato varieties, the optical sorter has proven to be high capacity, accurate and flexible. Available in several design configurations for specific needs.
The RiteYield system adds convenience and accuracy by automatically collecting data for all the various fields, varieties and test plots.
f Measures yields once per second
f Fits most harvesters
f Optional Tilt Sensor for greater accuracy
f GPS receiver connectivity
f User friendly
BUYERS’ GUIDE HARVEST
Safe-T-Pull Manufacturing (701) 284-6100
www.safe-t-pull.net
Crop Shuttle
The Crop Shuttle is engineered for high-volume, gentle handling — perfect for the demanding needs of potato harvest. With its large capacity and smooth unloading system, it helps you maximize efficiency while protecting your crop from damage. At the core of the Crop Shuttle is its positive-drive rubber belt floor, designed to prevent slippage and ensure a consistent, gentle flow of potatoes during unloading. This minimizes bruising and skinning, preserving quality from field to storage. The wide 52-inch back-fold boom allows fast, even unloading, with adjustable speed controls to suit your conditions.
One of the standout features is the optional 19-foot hydraulic side door, making it easy to load potatoes from the side at a low drop height, further reducing impact damage. The self-cleaning design keeps your operation running smoothly, even in tough conditions, with less downtime for maintenance.
Dewulf
+32 51 20 58 71
www.dewulfgroup.com
Enduro Generation 2
2024 marks the year the 4-row, self-propelled Enduro harvesting flagship from Dewulf entered its second generation. This model on tires incorporates user feedback and responds to evolving market needs to deliver enhanced performance and new features. The Enduro Generation 2 is available in 4x75 cm and 4x90 cm configurations, meeting increased demand in North America. A key improvement is the redesigned ring elevator, offering 50 percent more processing capacity through a larger bag volume, higher running speed and better product distribution. Additionally, the second-generation Enduro comes with two engine options: the well-known 450-hp Scania engine and a more powerful 550-hp version. For cleaning, the axial module, standard on the Enduro, features 30 speedadjustable rollers, with stepless inclination adjustment from 0 to 12 degrees, even allowing the module to be bypassed. The Easyclean module, ideal for moderate soil conditions or clod-prone areas, has an adjustable inclination from minus 3 to minus 15 degrees. Both systems ensure superior cleaning, regardless of field conditions. The standout 12.3 m³ capacity, two-part bunker ensures efficient harvesting with minimal downtime. The Enduro continues to lead in minimizing ground pressure, delivering excellent traction even in tough conditions.
BUYERS’ GUIDE
HARVEST
ROPA
https://www.ropa-maschinenbau.de/
ROPA Keiler 2
The Keiler 2 is a two-row trailed potato harvester designed for maximum efficiency and gentle crop handling. With its fully hydraulic drive and adjustable sieving, cleaning and picking units, the Keiler 2 offers unmatched flexibility and adaptability to varying field conditions. The large picking platform provides ample space for personnel, ensuring an ergonomic and efficient sorting process. Additionally, the machine is equipped with an automatic axle steering system and large-volume tires for optimized soil protection and stability. Developed and manufactured in Germany, the ROPA Keiler 2 is known for its outstanding build quality, reliability and minimal maintenance needs, making it the ideal solution for growers aiming to optimize their harvest operations.
ROPA Kartoffelmaus 5
The Kartoffelmaus 5 is a high-performance potato cleaner loader, engineered for maximum throughput and gentle crop handling. Featuring a powerful 354 hp Mercedes-Benz engine and a redesigned, fully hydraulic drive system, the Kartoffelmaus 5 offers exceptional efficiency during potato transfer operations. Its wide pickup system and intelligent cleaning technology ensure effective removal of soil and debris while preserving crop quality. The innovative cabin design with panoramic view, touchscreen operation, and telematics connectivity enhances operator comfort and machine monitoring. The Kartoffelmaus 5 sets new standards in loading performance, operational ease, and gentle product handling, making it an essential machine for professional potato logistics.
DAMMER DIKERS
ROCK/CLOD/AIR
& DRUM SEPARATORS
2023 Lockwood Vacs Mobile 350 hrs nice
2012 Harriston 3240 CH fingers peg belt blower sizing
fingers 480 V 3ph
2002 Harriston 240 CH Ellis table peg belt blower 230 V 3ph
1995 Harriston 200 CH New13 finger roller table 480 volt 3ph
COLLECTORS & STINGERS/PUPS
2020 Harriston 4556 Collector 48” BC Table, 2/36” belt
Stingers
2005 Spudnik 1600 Collector 60’’ Belt Table W/ 3 stingers
2001 Mayo 250 Side shift Belt Table 36”w/ 2 Stingers
SIZER
HARVESTERS
CROSSOVERS/WINDROWERS
3ph
1985 Milestone MSC48 48” Cutter
1988 Better Built 36” model 2300
2021 Tri Steel Web Belt Sizer 48” x 7’ w 24” cross
2015 Spudnik 925 -84” Acorns, 240 Volt 3ph
2000 Spudnik 925 -72” Acorns, 240 volt 3ph
Kerian 60”W x 10’ L, 4 adjustable lanes 1” to 4.5”, rib rolls
DIRT ELIMINATOR
2014 Spudnik 990 Multi Sep Dirt Elim 72” 480 volt 3ph
2011 Spudnik 96” 990 BC Elev. Reverse roll table sizing table
split picking cross out conv.
2004 Spudnik 995 DES 72” split picking 230 volt 3ph.
2017 Milestone 96” 480 3phase
2005 Milestone MSDSE84 belt Elev. RECONDITIONED nice
2006 Spudnik 995 72”Finger rollers
CONVEYORS -TELESCOPIC
1994 Double L 820 30” x 70’ 3ph
2001 Spudnik 1255 30/36/85 3ph
1996 STI 30” x 70’ 480 volt 3ph
CONVEYORS - STRAIGHT
5- Spudnik 1205 36” x 40’ 3ph
2000 DL 877 36”/ 40’ 3ph
5- 1998 DL 809 30”/38’ 3ph
5- Milestone 30” x 30’ 3ph
PLANTER FILLER/ DIRT TARE
ELEVATOR
Mayo 24” Telescopic Planter filler Piler
Lockwood 18” x 18’ Dirt Tare Piler
Tri Steel 18" x 30' Swing boom Tare Piler Shop Built 24” x 30’ cleated belt
PLANTERS
2008 Grimme GL36 Cup 6 row 36” Pull Hitch
2008 Spudnik 8080 Pull Hitch, Cup, 36” row spacing 2007 Harriston 4016 Cup 34” row, semi mount, 2002 Kverneland 3200 4 row cup
WAREHOUSE & MISC
Thermo Fisher Scientific Versa Flex Checkweigher System Model 40-060.
2017 Alliston 48” x 8’ rolling table Alliston Flume 48''Wx13'L SS destoner Kwik Locs
Neu Tech 9 lane weigher Ag Pak bagger 2 Kwik Locs
Grain Treater USC LP2000 with seed wheel
TREATERS
2013 Better Built CDT10’/10” Duster Chemical auger
2010 Better Built CDT10’/10” Duster
2011 Milestone MSLT36” Liquid Treater new pump
1997 Milestone MSBD36” Barrel Duster
DIGGIN’ IN
Relative Humidity Is A Key Aspect Of Potato Storage
When it comes to storing potatoes long term, growers often focus first on temperature, and for good reason. Cool storage temperatures between 38-48 degrees F can slow down respiration, disease development and sprouting. But do not neglect the importance of relative humidity (RH), which can result in higher shrink (weight loss), increase the risk for pressure bruise and affect economic returns.
Relative humidity is the percentage of moisture in the air compared to what that air could hold at a given temperature. Simply put, warm air holds more moisture than cold air. For instance, a cubic foot of air at 68 degrees F can hold up to 0.49 grams of water vapor, while that same volume at 39 degrees F can only hold 0.18 grams. If the air contains 0.45 grams of water at 68 degrees F, its RH is about 91 percent (RH = 0.45/0.49 × 100 = 91 percent).
When RH hits 100 percent the air is fully saturated and it can’t hold any more moisture. If you cool saturated air, water condenses out. This means watching the amount of water in the storage air as the crop is decreasing in temperature in order to avoid condensation.
Research studies identified that 98 percent of the moisture lost from a tuber during storage occurs through the skin via evaporation. Evaporation is minimized when the internal pressure of the cells in the tuber equals the vapor pressure of the surrounding air. This equilibrium requires an RH of 97.8 percent in the air between tubers, assuming air and tuber temperatures are equal, and this would create conditions of negligible water
loss from the crop. But here lies the difficulty: this assumes air and tuber temperatures are the same. But due to respiration, the potato is giving off heat, and the air right around the potato will be warmer.
Water Vapor Pressure Deficit
The rate of moisture loss from tubers is proportional to the difference in water vapor pressure between the tuber and the surrounding air, a measure known as the water vapor pressure deficit (VPD). VPD varies with both air temperature and RH. A higher VPD accelerates moisture loss from tubers. Ventilation plays multiple roles; it removes heat generated by the tubers and helps regulate the RH between the tubers and supplies humidified air. The lower the RH of the ventilating air, the greater the VPD and the resulting moisture loss from the crop.
When the ventilating air is cooler than the tubers, VPD increases, regardless of the humidity level. This is why ventilating with air slightly cooler (less than 3 degrees F) than the potatoes will allow for cooling of the crop and minimize moisture loss from the potatoes. Ventilating with air that is both cooler and drier than the crop significantly increases the VPD and consequently the rate of moisture loss through evaporation.
The balance and interaction between humidity and temperature is complex. Information on vapor pressure deficit, dew point, wet air/ dry air bulb temperatures, and the psychometric chart can help put the complexity into perspective. Not only is this interaction happening on a macro scale when making storage management decisions, but this interaction is occurring in the microclimates and space in between
the stored potatoes. The principles of psychometrics and how temperature and humidity are connected can help make management decisions to minimize weight loss in storage.
(Teixeira, assistant professor & extension specialist – potato postharvest physiologist, can be reached at gteixeira@uidaho. edu. Olsen, professor & extension specialist – potato, can be reached at norao@uidaho.edu. Both are based at the University of Idaho’s Kimberly Research and Extension Center.)
(Above) Making sure your potato crop is stored as well as it can be is really an art – and combination of the right temperature, relative humidity and air flow.
(Right) Ensuring that the relative humidity inside your potato storage is optimal will go a long way in preserving the stored potato crop, lessening the risk of shrink and pressure bruise.
Plant Essential Oils: A New Option For Controlling Root-Knot Nematodes Beyond Fumigants
Root-knot nematodes are one of the major pathogens in agricultural production. These nematodes infect the roots of plants, causing root tissue swelling, which hinders nutrient absorption, suppresses crop growth and development, and ultimately leads to reduced yields.
Root-knot nematodes are widespread globally, especially prevalent in tropical and subtropical regions.
Traditionally, chemical agents such as nematicides, especially fumigants, have been used to control these pests. While fumigants offer excellent soil-clearing effects, they also eliminate beneficial soil microorganisms, and most nematicides can only target nematodes themselves, without killing nematode egg masses.
With the push for sustainable agriculture, research has increasingly focused on developing natural, safe and environmentally-friendly control methods, with essential oils showing significant potential in controlling root-knot nematodes.
Essential oils are volatile substances extracted from aromatic plants’ leaves, stems, flowers and roots. These oils have bioactive properties such as antibacterial, antifungal and antioxidant effects. Rich in aldehydes, terpenes, phenols and esters, essential oils have natural pest and diseasefighting abilities. In combating root-knot nematodes, many essential oils have demonstrated the ability to inhibit nematode activity, prevent reproduction and reduce infection rates in plants.
Control Through Several Mechanisms
Essential oils can control root-knot nematodes through several mechanisms. First, the active components in essential oils can directly affect the nematodes’ nervous system, disrupting their movement and reproductive ability. Many studies have found that essential oils containing terpene compounds, such as thyme oil, peppermint oil and cinnamon oil, effectively paralyze nematodes, preventing
This shows a root-knot nematode penetrating a tomato root. Photo courtesy of the USDA-ARS.
Reduce Weeds and Boost Your Bottom Line
FLAME WEEDING AND THE PROPANE FARM RESEARCH PROGRAM
Propane-powered flame weed control is popular among ag producers as an alternative to herbicides — one that is 100% organic and up to 90% e ective against weeds. Likewise, the Propane Farm Research Program is also growing in popularity, thanks to the opportunity for farms to earn up to $10,000 per application for providing valuable data on the performance of propane-powered ag equipment. By participating in both, farmers can help improve the future of agricultural operations in ways that make them even more e cient and more environmentally friendly.
See how propane flame weeding fits your potato production schedule at propane.com/flame-weeding.
Find complete Propane Farm Research Program guidelines at propane.com/PFRP.
them from infesting plant roots. Additionally, essential oils have strong antioxidant and antimicrobial properties, which inhibit the growth and reproduction of root-knot nematodes. Essential oils like clove oil and lemongrass oil are rich in phenolic compounds that can destroy nematode cell membranes, leading to their death. Moreover, essential oils can boost plants’ immune systems, promote healthy root growth and increase crop resistance to nematodes.
In recent years, numerous studies on essential oils for controlling root-knot nematodes have shown varying effects. One study tested 16 different essential oils for their lethal effects on root-knot nematodes and found that wormwood, cinnamon, peppermint, lemon balm, lemon eucalyptus, rue and clove oils were effective in killing half of the nematodes at dilutions higher than 500x. Cinnamon oil proved the most effective, killing more than 50 percent of the nematodes at concentrations as low as 1/10,000 and inhibiting egg mass hatching at concentrations of 1/1000. Since cinnamon oil is a 25(b) exempt material, it is easily available on the market in plant protection products based on cinnamon oil.
In addition, some commercial essential oil products are gradually being applied in agriculture for root-knot nematode control. Neem oil, for example, has broadspectrum insecticidal and antibacterial properties and has been proven effective against root-knot nematodes. The main active ingredient in neem oil, Azadirachtin, inhibits nematode reproduction and prevents egg hatching. Neem oil is currently classified as an EPA-registered pesticide, which makes it more expensive than 25(b) exempt products, complicating its promotion.
Additional Benefits
The main components of clove oil and cinnamon oil, such as eugenol and cinnamaldehyde, are effective in controlling soil-borne diseases like damping-off caused by Rhizoctonia solani, wilt caused by Fusarium oxysporum, and bacterial wilt caused by Ralstonia solanacearum. Therefore, applying
plant protection essential oil products based on cinnamon oil cannot only reduce the damage caused by root-knot nematodes to crop roots but also lessen the impact of other soil-borne diseases on crops.
The primary advantage of using essential oils to control root-knot nematodes lies in their natural and environmentally-friendly characteristics. Compared to traditional chemical nematicides, essential oils do not pollute the soil, water sources or ecosystems, and they pose relatively low risks to human health.
Additionally, essential oils have multiple bioactive properties; beyond controlling nematodes, they promote plant health and reduce reliance on other pesticides and fertilizers.
However, there are challenges in using essential oils for nematode control. First, essential oils are volatile, and their residual effect in the soil is relatively short, potentially requiring frequent applications to maintain effectiveness. Alternatively, applying them in a fumigant-like manner — before planting, covering them with plastic to enhance volatility — could improve efficacy. Additionally, the cost of different essential oils varies significantly, with some highly effective oils being relatively expensive, which presents challenges for large-scale agricultural production. Moreover, the effectiveness of essential oils can be influenced by environmental factors such as temperature, humidity and soil type, requiring adjustments based on specific conditions in practical applications.
In conclusion, essential oils show significant potential as a natural and environmentally friendly alternative for controlling root-knot nematodes. With advancements in agricultural technology and increasing demand for sustainable agriculture, essential oils are likely to become an essential part of future integrated pest management strategies.
(Fend is product division manager at JH Biotech, Inc. For more information, visit https://jhbiotech.com/.)
Shown here are nematodes feeding on roots.
When you invest in a Western Spud Express® you can rest assured your new trailer has been built to stand up to the rigors the potato industry can dish out. The backbone of the Express is our high tensile steel main frame, treated with our level 4 paint system. Year after year the Spud Express delivers quickly and gently the biggest payloads, along with the highest resale value of any potato trailer on the market!
DIGGIN’ IN
Propane is a more economical source of energy – compared to diesel or gas –and what might be even more appealing to farm operators is renewable propane, which can be even more appealing.
Propane Proves Itself A
High Performing, Lower Emission Solution For Water Management
In the world of potato farming, efficient irrigation is essential. As growers contend with rising energy costs, water restrictions and stricter environmental considerations, the search for reliable and costefficient energy sources has become more important than ever. One energy source gaining traction, and for good reason, is propane. Propane offers performance, affordability and environmental benefits unmatched by other fuels.
Across the country, farmers rely on propane-powered irrigation engines as a cleaner, more economical choice over diesel or gasoline, and now, renewable propane is making the future of propane even more appealing, with more innovations and near-zero emissions capabilities.
Understanding The Irrigation Benefits Of Propane
As potato farmers know, irrigation is one of the most energy-intensive operations necessary to run operations, particularly in regions where water must be pumped over long distances or from deep wells. In the past, diesel and electric motors have taken on the role of powering irrigation systems in many parts of the country, but propane offers several compelling advantages worth considering.
Lower Operating Costs
Propane typically costs less than diesel or gasoline per gallon and has less extreme price fluctuations, but engine maintenance and longevity is where propane engines really boast their benefits. Because propane is a cleaner fuel,
engines experience less carbon buildup leading to longer service, less maintenance, and reduced overall downtime — an important consideration during critical growing seasons.
Environmental Stewardship
In addition to reduced carbon buildup, propane emits 11 percent fewer greenhouse gas emissions than diesel and 24 percent fewer greenhouse gas emissions than gasoline. For growers interested in more sustainable farming, and potentially qualifying for environmental stewardship programs, propane is also an excellent choice.
Performance And Reliability
Innovative new propane-powered engines are capable of powering large-scale irrigation systems with durability needed for season-long operation. These modern engines deliver consistent torque and are available in a wide range of sizes and capacities to meet a variety of irrigation needs.
One advantage propane has over, say, electricity is that the latter can be subject to power outages and supply restrictions whereas propane is an independent fuel source.
Energy Independence And Storage
Unlike electricity, which is susceptible to sudden grid outages or supply restrictions during peak demand periods, propane is an independent fuel source that can be stored on-site. This ensures propane can keep up with any irrigation schedule needed, even in the most remote of locations or during extreme weather conditions.
PERC’s Propane Farm Research Program
To help farmers incorporate propane on their farm, or expand its usage, the Propane Education & Research Council (PERC) is now offering incentives through the Propane Farm Research Program (PFRP). This program offers funding to farmers across the U.S. while validating and demonstrating real-world benefits of propane-powered equipment — including irrigation engines, flame weeding systems, grain dryers and more.
Through these partnerships with growers, the PFRP is designed to gather performance data under real farming conditions, improve equipment designs directly based on user feedback, promote grower education and training on propane units, and help farmers make upgrades or transition to propane farm equipment sooner. Through this program, PERC hopes to listen to farmers, collect meaningful data, and use it to help shape the next generation of agricultural power solutions. Growers interested in participating in this program can learn more by visiting Propane.com/ Propane-Farm-Research-Program, or by contacting their local propane supplier.
Propane’s Growing Role In Potato Fields
From the Pacific Northwest to the Great Plains, propane irrigation offers the consistent power needed for center pivots, drip irrigation and more. As water management and energy efficiency continue to shape the future of the agriculture and potato industries, propane offers a powerful and proven solution. With PERC’s new research program and the industry’s momentum, now is the perfect time to consider propane.
NEXT-GEN Durability
(Newland is director of agriculture business development at the Propane Education & Research Council. For more information, visit https:// propane.com/.)
MONTANA
SEED POTATO CERTIFICATION PROGRAM
By Dr. Aritra Roy Choudhury, Director
Healthy Seed Starts With Healthy Soil Life
Earlier this year, while going through the Nature Microbiology journal, I was pleasantly surprised to see a drone image of a potato field featured on its cover. The headline read: “Microbiome predicts potato growth potential.”
The cover highlighted a study from a Dutch research team exploring how the microbial makeup of seed tubers could predict their performance in the field. While the science was powerful, what truly struck me was this: the global scientific community is finally recognizing something many growers have recognized through years of experience – that the unseen biological life associated with our seed potatoes holds tremendous power.
In recent years, the term “soil microbiome” has gained significant traction across agriculture conferences, research articles, and even product labels. While it’s exciting to see such scientific concepts entering mainstream agricultural conversations, we risk turning the soil microbiome into a buzzword which is used more often for marketing than for management.
For seed potato growers, it’s time to move beyond the buzz and embrace the soil microbiome not just as a topic of interest but as a practical tool that can be integrated into everyday decision-making practices.
Soil Health Is Foundational
We know that soil health is foundational to crop health. But what we’re only now beginning to fully appreciate is that the microbial world in and around the seed tuber can strongly influence plant health. These microbes can promote early growth, defend against diseases, improve nutrient uptake and shape the plant’s resilience under stress. In other words, the microbiome is not just a passenger on the seed tuber; it’s a co-pilot.
Think about the decisions you already make when selecting seed: you look for uniformity, firmness, absence of blemishes, and certified disease-free status. Now imagine if we could also evaluate the microbial quality of that seed, the richness, diversity, and balance of beneficial bacteria and fungi that come with it. This microbial fingerprint may determine whether that plant establishes quickly, fends off early-season stress or reaches its full yield potential.
One of the most compelling aspects of the soil and seed microbiome is its dynamic qualities. It responds to how we manage the land, from the crops we rotate to the amendments we apply, from tillage depth to storage conditions. These aren’t abstract changes; they are shifts that can make or break a crop’s early momentum.
For example, practices like incorporating cover crops, minimizing synthetic
inputs, and avoiding over-tillage are known to support a richer, more balanced microbial environment. This biological richness travels with the seed, and when that seed tuber is planted, its microbial community sets the stage for early interactions in the rhizosphere – the root zone. The plants are more likely to thrive when the rhizosphere zone is biologically robust.
Not Just A Product
A “seed potato” is not just a product, but is a living system that carries its
own biological potential into every field. When we manage seed as biology, not just a commodity, we unlock new levels of sustainability, productivity and plant health. Furthermore, we should also resist the temptation to oversimplify. Microbiomes are not just something to be added via a jug or a package. They are an integral part of a complex, balanced and sensitive ecosystem. Throwing a single microbe into the mix and expecting a miracle is like planting a lone corn stalk in the desert and hoping for
A NOLAN SALES AUCTION
On the Potato Equipment of
MATT ARROWOOD
N5112 HILL ROAD, BRYANT, WI 54418
FRIDAY, JUNE 20th
STARTING AT 11:00 AM LUNCH AVAILABLE ON GROUNDS
LOCATED: Northeast of Antigo 9.8 miles on WI-52 to Hill Road, then north on Hill Road to the site, Watch for auction signs.
TRACTORS: John Deere 8420 tractor, full front weights, inner wheel weights, quick hitch, 540/1000 lg & sm pto, 4 remotes, std 18spd power-shift trans, new tires all around, 380/90R50 rears, 8511 hrs, sn: RW8420P031344; John Deere 8320 tractor, MFWD, 14.9R50 duals, 540/1000 lg & sm pto, 4 rear remotes, std 18-spd power-shift trans, inner wheel weights, 11971 hrs. Both tractors are in excellent condition. POTATO EQUIPMENT: Lockwood 2-row high-capacity air head harvester, 45 & 42 mm belted web, VFD drives, 1000rpm pto, Cummins power unit for air head & hyd; Lockwood 2-row Mark Air harvester, all belted web, needs air head bearings, and a power unit to run fan; Lockwood 36” self-propelled bin piler, 240V single-phase, 45’ boom, new wired remote, all rubber belt; Spudnik 30” self-propelled utility piler, 240V single-phase, 24’ boom, all-rubber belt; Milestone 72” all-hydraulic seed cutter w/hyd adjust sizers, variable speed elevator, hyd wheel drive, on-board knife sharpeners, leveling jacks, 230/480V 3-phase; 2001 Harriston 6-row disc-hiller w/34” or 36” spacing, sn: 20645; Spudnik 910 60” dirt eliminator/sizer, 230/480V 3-phase, self-propelled; Ever Rain 4”x1250’ hard hose w/Nelson 200 Big Gun; 36”x10’ roller inspection table; Hiniker 15’ stalk chopper, 1000 pto; John Deere V-ripper sprayer track remover; 20’ in general chain-bottom potato box; Double L 30”x25’ conveyor, 240V singlephase, leveling jacks, on caster wheels; Kerian 50” potato sizer, 4-lane exit, on caster wheels, 120V single-phase; 2022 Tong potato de-stoner/clod remover, needs 480V 3-phase, all VFD controlled; Tong de-stoner rock bucket stand; Case 78” produce bucket for skidsteer; Bauman 90” skidsteer produce bucket; 26”x7’ potato scrub brush washer, 120V single-phase; Lockwood 30”x11’ stinger conveyor w/6-roller star table dirt eliminator, 240V singlephase; 20”x8’ roller inspection table, 120V single-phase; Lockwood 24”x14’ conveyor, 240V single-phase; Ag Engineering Dammer Diker, 6-row 34” rows, w/2 rows of shanks, gauge wheels; Double L 851 4-row windrower, 45mm & 42mm, belted web has gauge wheels, RH discharge; Kvernland UN3300 Underhog 6-row 34” row potato planter, new cup belts, new 20” notched covering disc, row markers, 110 gallon in-furrow application system; Double L 853 4-row harvester, Galaxy table, high flotation tires, 45mm & 42mm, belted web; Milestone 30” seed treater/duster, 120V single-phase; 2000 gallon nurse tank on semi pup trailer w/2” gas motor & hose, new pump & hose; Lockwood 36” screen sizer roller inspection table w/belted web incline conveyor and chain discharge conveyor for “B” potatoes; (34) 18”x20’ smooth wall ventilation culverts; (8) Funnels fans.
POTATO TRUCKS: Ford 9000, tandem axle, auto trans, 3208 Cat motor, 20’ Double L belt-bottom box, no tarp; Ford 8000, tandem axle, auto trans, 3208 Cat motor, 20’ Logan belt-bottom, self-contained hydraulics, wet kit, w/auto-roll tarp, 62680 miles; Mack Model R, tandem axle, auto trans, 22’ Double L belt-bottom box, pto pump on truck, w/roll tarp; Int. Fleet Star 2070A, diesel, tandem axle, auto trans, D466 motor, Lockwood 20’ chain-bottom box, w/roll tarp; Int. Fleet Star, tandem axle, auto trans, 500ci gas motor, Lockwood 20’ chain-bottom box, w/roll tarp; International S1900, tandem axle, auto trans, 500ci gas motor, new steerers, 53000 miles, w/auto-roll tarp; Mack Model R, tandem axle, 20’ 801 Double L belt-bottom box, MaxiTorque extended range trans, no tarp; Mack RD6885, TDRL 10-70 manual trans, quad axle, 24’ 4200 Spudnik potato box, belt-bottom, pto pump, w/auto-roll tarp, hauls 800 bu of grain.
FARM EQUIPMENT: Gallenberg 750XT AireGlide sprayer, 4wd, 120’ booms, high output foam marker, new Raven system; Brillion 9-shank Soil Commander chisel plow, new 22” front blades & bearings last fall, sn: 179458; Wilmar Loadrunner 16-ton dry fertilizer tender/grain cart on tandem axle semi-trailer chassis; Hiniker 15’ stalk chopper, 1000pto, sn: 4003-0081-100; Clark GCX25E forklift, 4500 lb. lift, LP engine, new brakes & lights, sn: GX230E-0475-9372FB, 8030 hrs; Case 16’ offset disc, new 28” blades and bearings last fall; Kuhn Krause 8200 disc, rock-flex, 36’, hyd level/depth control, walking tandem, sn: 8200-36X-2094.
SPECIAL ITEMS: 500 gallon diesel tank w/new 110V pump w/ outrigger and in-line filter; (2) 200 gallon oil tanks on stand for 15-40 motor oil & hydraulic oil; 110 gallon antifreeze tank on stand; 2016 Yamaha Wolverine UTV, 4x4 750 cc, blown motor. ONLINE BIDDING will be available at https://www.equipmentfacts.com and https://www. proxibid.com. There will be a 2.5% BUYER’S PREMIUM with a cap of $750.00. Sale clerked by Nolan Auction, Inc. Regular auction terms - cash or personal check. Everything sold as is, where is. No Warranties. If you have property to trade or sell, contact our office.
SALE CONDUCTED BY NOLAN SALES LLC
PO Box 486, Marion, WI 54950 * (715) 754-5221 or toll-free 1-800-472-0290
Tim Nolan & Gerald “Sonny” Nolan, Reg. WI Auctioneers, Lic. #165 & #142
Visit our website at www.nolansales.com for photos & truck details.
a field. Success lies in fostering communities of beneficial organisms and creating conditions that allow them to thrive, and the rewards are tangible.
Seed lots with a healthy microbial signature can lead to improved emergence, more uniform stands, and stronger plants with better disease resistance. In economic terms, this can translate to fewer input costs, reduced crop losses and better returns. In ecological terms, it means building resilience into the system rather than constantly reacting to its failures.
We are standing at the edge of a paradigm shift in how we think about seed health. For too long, we have limited our definition of “clean seed” to what we can see under a microscope or identify with a PCR test.
But now the lens is widening, and we are beginning to recognize that the microbial allies a seed tuber carries are just as important as its physical and virological condition. This shift acknowledges that a thriving microbiome is not a bonus, but a baseline for resilient seed. It means recognizing that the decisions we make about crop rotation, organic amendments, irrigation and storage all shape the microbial story of our seed tubers. For growers, this is a call to be both curious and proactive. Walk your fields not just as a steward of land and crop but as a manager of biology. Pay attention to the health of your soil. Monitor how your practices affect organic matter and microbial activity. Push for innovation that integrates microbiome health into seed grading, handling and certification.
I often say that the story of a potato begins long before planting. It begins in the unseen realm, where microbes shape the destiny of the seed health. By understanding and managing that realm, we are not just growing crops; we are cultivating resilience, sustainability, and a new generation of smart agriculture.
Potato Grower Golf Scramble
The Potato Industry's Most "Rewarding" Day!
GROWERS PLAY FREE
All skill levels welcome
One free player per family/farm/operation
Each team must have a combined handicap exceeding 60 The two best players’ combined handicap must be 15 or more Field is limited to the first 144 paid entries All players (men & women) must adhere to the dress code of the Idaho Falls Country Club. For more information call (208) 523-5762.
