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MARCH 2013

In this Issue: 2 Letter from the President

6 Arborist Day 2013

10 Legislative Update 14 Brown Marmorated Stink Bug Research 17 Emerald Ash Borer Update 20 Early Season Defoliators

2 A Letter from the President Dear Fellow MAA Members: I hope this message finds you all in good health and very busy as winter comes to an end and spring approaches! The MAA has been active this winter. Thanks to Bob Mead and his team for a wonderful and informative 32nd Maryland Arborist Association Annual Recertification Seminar. Also, a big thanks to our speakers and annual sponsors who continue to support our organization. Finally, thanks to all the members who take time away from their work and responsibilities to attend our meeting. We have also been very busy in Annapolis during this legislative session, following 3 different pieces of legislation concerning the Maryland Licensed Tree Expert Law. All feedback received from members on the proposed bills was submitted to the appropriate state representatives prior to the hearings. View a full update on the status of these bills within this issue of Shady Notes. Please plan to join us on Saturday April 13, for our 35th Arborist Day Project. This year’s event will be held in Baltimore at Patterson Park. Fill out the volunteer registration and come help us with this fun and rewarding day of service! Check out the calendar of events in this issue for more upcoming events. Most importantly, have a safe and productive spring and summer. John Davis President, MAA

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3 Natural Resources Careers Camp The Natural Resources Careers Camp, NRCC, will be held July 21-27, 2013 at Hickory Environmental Education Center in Garrett County Maryland. This seven day camp is designed for Maryland and Mid-Atlantic high school students interested in pursuing a career in forestry and natural resources. Students will learn about working in the field of natural resources, employment and career opportunities in forestry, fisheries and other related disciplines from teams of natural resource professionals. Each year NRCC dedicates an entire day to Urban Forestry that begins with a panel discussion on careers in arboriculture with representatives from Bartlett Tree Experts, Davey Tree Experts, Pepco and staff from Maryland DNR Forest Service and Howard County Natural Resources. Students are then introduced to the Pepco Hot Line demonstration to drive home the importance of safety when working around energized lines. The remainder of the day is spent with students enjoying tree climbing, planting, pruning, chain saw safety and the use of traditional forestry tools. Interested students apply online and are interviewed and selected to attend the camp by the 24 Maryland counties and Baltimore City forestry boards. Most forestry boards

Anyone interested in participating or supporting next year’s camp should contact David Keane at 410-313-1676 or visit http://marylandforestryboards.org/ offer scholarships for students to attend NRCC. The camp is also funded through donations to the Maryland Forestry Board Foundation and in kind services. The Maryland Association of Forestry Conservancy District Boards and the Maryland Forestry Foundation in partnership with the Maryland Department of Natural Resources Forest Service and Allegany College of Maryland present the camp.

The Maryland Arborist Association

Thanks – to our generous sponsors. White Oak Sponsors Georgetown Insurance www.georgetowninsurance.com

IWIF www.iwif.com

Altec Industries, Inc. www.altec.com

Vermeer Mid Atlantic www.vermeermidatlantic.com Security Equipment Co. www.securityfnh.com

Dogwood Sponsors Rainbow Treecare Scientific Advancements www.treecaredirect.com

Winter Seminar Sponsors Air-Spade • Mid-Atlantic Stihl • Moran Insurance • Newsome Seed, Inc.

4 Calendar of Events 2013

For a full and updated calendar of events, and to find registration information and event links, please visit the MAA website at www.mdarborist.com April 3, 2013 Interstate Ornamental Plant Management Conference Location: Maritime Institute, Linthicum, MD Contact: Avis Koeiman, 301-405-3913 akoeiman@umd.edu

June 14, 2013 ISA Certification Exam Location: Newark, DE Contact: ISA, 1-217-355-9411 cert@isa-arbor.com

April 6, 2013 MAC-ISA Tree Climbing Championship Location: Byrd Park, Richmond, VA Contact: 703-753-0499

June 14, 2013 Procrastinator’s Conference Location: Eastern Shore Venue: TBD

April 10, 2013 Brown Marmorated Stink Bug Research Update Location: Carroll Community College Contact: University of Maryland Extension, 301-596-9413

June 20, 2013 MNLA Summer Field Day Location: Waverly Farm, Adamstown, MD Contact: www.mnlaonline.org or 410-823-8684

April 11, 2013 Interior Plantscape Symposium Location: Longwood Gardens, Kennett Square, PA Pre-register online. No walk-ins. www.landcarenetwork.org/events/ips/index.cfm

July 16, 2013 CPH – Specialist Exams: IPM & Herbaceous Perennials Must be pre-registered to attend Contact: www.mnlaonline.org, 410-823-8684

April 13, 2013 Maryland Arborist Day Location: Patterson Park, Baltimore, MD Contact: MAA, 410-321-8082, www.mdarborist.com April 15, 2013 CPH – Basic Exam Must be pre-registered to attend Contact: www.mnlaonline.org, 410-823-8684 May 11, 2013 ISA Exam Location: Philadelphia, PA Contact: ISA, 1-217-355-9411 cert@isa-arbor.com June 7, 2013 Procrastinator’s Conference Location: Montgomery County Venue: TBD June 8, 2013 MAC-ISA Day of Safety Location: HRAREC, Virginia Beach, VA Contact: MAC-ISA, 703-753-0499 June 13, 2013 MAC- ISA Arborist Certification Course Location: Fairfax, VA Contact: MAC-ISA, 703-753-0499

July 16-18, 2013 MAC-ISA Arborist Certification Course Location: Abingdon, VA Contact: MAC-ISA, 703-753-0499 August 3-7, 2013 89th Annual ISA Conference Location: Metro Toronto Convention Centre, Toronto, Ontario (Canada) Contact: +1 217-355-9411, conferencereg@isa-arbor.com August 5-6, 2013 Southern Nursery Association Research Conference Location: Georgia International Convention Center, Atlanta, GA Contact: SNA, 678-809-9992, mail@sna.org October 8, 2013 CPH – Basic Exam Must be pre-registered to attend Contact: www.mnlaonline.org, 410-823-8684 October 8, 2013 CPH – Specialized Exam: Advanced Plant Identification Must be pre-registered to attend Contact: www.mnlaonline.org, 410-823-8684


6 The Maryland Arborist Association, Inc. 35th Arborist Day Project

Patterson Park Baltimore, MD

Saturday, April 13, 2013 7:00 a.m. - 3:00 p.m. (Rain Date – Saturday, April 20, 2013) Location Patterson Park, Baltimore, MD 21231 The Park lies between E. Baltimore Street and S. Pratt Streets on the North & Eastern Avenue on the South.

Driving Directions Interstate 83 South (turns into President Street) to Pratt Street. Make a left on Pratt Street and continue for 1 mile to South Patterson Park Avenue. Before it was a park, the site of Patterson Park played a major role in the War of 1812, serving as the grounds where American troops stood ready during the decisive battle of North Point at “Hampstead Hill,” the promontory in the park where the Pagoda is situated. The park serves a very different purpose today as a site of recreation, frequented by neighborhood schools and churches for its athletic fields. It is also home to one of the two ice rinks available in the city. Patterson Park is Baltimore’s most intensively used large park. Schedule for the day: 7:00 - 7:30 a.m. Crews arrive 7:30 – 8:00 a.m. Breakfast 8:00 a.m. Welcome and Safety Meeting 12:00 Lunch 2:30 p.m. Wrap-up 3:00 p.m. Head Home

VOLUNTEER TODAY! To volunteer, please complete the registration form on the page 7, or online via the calendar page of the MAA website, www.mdarborist.com. For more information, contact the MAA at 410-321-8082 or via mdarboristassoc@aol.com. Morning coffee, juice and donuts, and lunch will be provided to all. All participants must bring their own climbing and personal protective equipment. All gear/equipment must be up to MOSH, ANSI ZI33, and TCIA standards.

7 VOLUNTEER REGISTRATION FORM The Maryland Arborist Association, Inc. 35th Arborist Day Project

Saturday, April 13, 2013 • 7:00 a.m. - 3:00 p.m. • (Rain Date – Saturday, April 20, 2013)

Patterson Park, Baltimore, MD Register online at www.mdarborist.com. Select this event from the Calendar Page. Company Name:____________________________________________________________________________________ Address: __________________________________________________________________________________________ City:_______________________________________________________ State:_ ___________________ Zip: __________ Key Contact: (Name)_______________________________ (Title)_____________________________________________ Phone:_ _________________________________________ Fax:_ _____________________________________________ Cell:_____________________________________________ E-mail:____________________________________________ A. Please list the names and position of the people volunteering: ________________________________________________ __________________________________________________ ________________________________________________ __________________________________________________ ________________________________________________ __________________________________________________ B. To help us make appropriate assignments, please list the equipment you plan to bring: __________________________________________________________________________________________________ __________________________________________________________________________________________________ __________________________________________________________________________________________________ __________________________________________________________________________________________________ C.

Please carefully note the following: 1. All personnel/volunteers must be equipped with their own climbing and personal protective equipment, and will operate under the requirements of ANSI Z133 safety standards, as well as TCIA standards of practice.

2. Participating personnel/volunteers are the responsibility of the participating firm at all times during Arborist Day and are considered covered by the participating firms’ workers’ compensation and general liability policies. The MAA will not and cannot be held responsible for any personal injury nor any other liability resulting from participation in the Arborist Day project.

I have read and agree to abide by the results and regulations outlined above. Signature__________________________________________________ Date___________________________________ Print Name_________________________________________________ Title___________________________________ Please return this form as soon as possible to MAA to volunteer. Fax to: 410-296-8288 or mail to Maryland Arborist Association, PO Box 712, Brooklandville, MD 21022 For more information call 410-321-8082 or e-mail mdarboristassoc@aol.com

8 Maryland Arborist Association Board of Directors July 1, 2012- June 30, 2014 President John Davis, jdavis@bartlett.com 410-526-6655 President-Elect Jeremy Baker, jeremy@antietamtree.com 301-791-3500 Secretary Kirk Floyd, k.floyd@landscapeprojects.com 301-652-8844

Executive Director Vanessa A. Finney, mdarboristassoc@aol.com 410-321-8082

Maryland Green Industry Council Frank Dudek, frank.dudek@arborvalleytreeservice.com 443-841-7222

Advisors Tom Rippeon, grippeon@cityoffrederick.com 301-600-3860

Honorary Director Matthew Anacker, matthewanacker@aatreeexperts.com 410-486-4561

Steve Sprague, ssprague@carrolltreeservice.com 410-998-1104

OUR MISSION The mission of the Maryland Arborist Association, Inc. is to promote education in the field of arboriculture, to support the success of arboriculture and to promote the importance of tree care. The association will provide a forum for the exchange of information and will encourage professionalism through the collective efforts of the members.

Nicholas Valentine, nvalentine@lewistree.com 410-987-4815

Treasurer Todd Armstrong, todd.armstrong@davey.com 410-377-4002 Immediate Past President Steve Castrogiovanni, scastrogiovanni@meadtree.com 301- 854-5990 Directors David Driver, mail@arborx.com 410-838-2999 Frank Dudek, frank.dudek@arborvalleytreeservice.com 443-841-7222 Bob Mead, meadtree@meadtree.com 301-854-5990

Liaisons MAC - ISA Scott Bates, sbates@bartlett.com 703-550-6900 U of MD Dr. Michael Raupp, mraupp@umd.edu 301-596-3626 U MD Extension Stanton Gill, sgill@umd.edu 301-596-9413 MD Forestry Board Chris Klimas, chris.klimas@davey.com 301-829-6915

Maryland Arborist Association, Inc. P.O. Box 712, Brooklandville, MD 21022 Phone: 410-321-8082, mdaboristassoc@aol.com

MARYLAND ABORIST ASSOCIATION  LICENSE PLATES AVAILABLE The Maryland Arborist Association sponsors a special state-issued license plate that displays the MAA logo, featuring the Wye Oak. Your $50 contribution will cover the MVA fee of $25 and provide $25 towards the MAA education fund. If you are interested in purchasing this special plate, place your order through the MAA website, www.mdarborist.com. Near the bottom of the homepage you will find a link to the order form.

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Legislative Update The following bills have been followed by the MAA in this session of the General Assembly, as part of the MAA’s membership in the Maryland Green Industry Council (MaGIC). MAA members have been receiving regular e-mails highlighting all bills affecting Maryland’s Green industry. Those e-mail bulletins are also posted on the MAA website under the MaGIC page. Three bills in particular affect Maryland Licensed Tree Experts. These bills and their status, as of March 26th, are listed below. If the status of the bills has changed, e-mail updates and webpostings will be made. It is highly likely that by the time this issue of Shady Notes has been produced, the status of the bills will have changed. You may click on the bill links in the article below to receive the most up-to-date information about these bills. The general website for the General Assembly, where on you can look up any bill, contact a legislator, etc. is http:// mgaleg.maryland.gov. HB 572 Natural Resources – Tree Expert License – Qualifications This legislation reduces from 5 to 3 the number of years that an individual has to be working with a tree expert before they can be licensed by DNR. • Recommended position – do not oppose • Hearing date – Feb 27 (House) • Status – MaGIC testified in support; bill was amended to include Continuing Education Requirements, formerly included in HB 927 and to change number of

years that an individual is required to work with an LTE from 5 to 4 years; Passed House; now needs to go to Senate • Link to amended version HB 728 / SB 211 – Natural Resources – Tree Experts – Prohibition Prohibits “renting” of one’s LTE credential to another person or company; requires that “A Licensed Tree Expert may not supervise more than one company that provides tree expert services.” • Official position – support • Hearing – February 5 (Senate); March 27 (House) • Status – Passed the Senate; Given unfavorable report in the House HB 927 / SB 692 Licensed Tree Expert - License Renewal Continuing Education Requirement Requires a licensed tree expert to complete specified continuing education requirements to qualify for license renewal; requiring the Department of Natural Resources to maintain specified records for each licensed tree expert; requiring the Department to update specified records when a document of completion is approved; requiring the Department to mail a renewal application form to a licensed tree expert under specified circumstances; etc. • Official position – support • Hearing – March 1 (House); March 5th, (Senate) • Status – MaGIC has/will testify to support; March 19 – given unfavorable report in House; given unfavorable report in the Senate


12 Maryland DNR Tree Expert Exams The following individuals have recently passed the Maryland Licensed Tree Expert Exam. Congratulations to these new LTEs!

Barry Davison Matthew Rieger Mike DeGregonio

Certified Treecare Safety Professionals The following persons successfully completed the CTSP course and exam at the MAA Winter Conference this past January. Congratulations to the following: Jon Auer, Strobert Tree Services, Inc, Wilmington, DE Donald F. Blair, Sierra Moreno Mercantile, Hagerstown, MD

Mark Emmell

Mike Dunn, Preservation Tree, Exton, PA

Jordon Harris

Kyle Ewing, Bartlett Tree Experts, Saint Michaels, MD

Mike Leibfreid Richard Ratcliff Karl Tomanek

Frank A. Fogle, Jr., Davey Tree Expert Company, Baltimore, MD

Mark Beaven

Kevin Forgue, Nelson Tree Service, Inc., Strongsville, OH

Robert Jones

Stephen Goin, Bartlett Tree Experts, Bala Cynwyd, PA

Jacob Fisher

Walter Gonzalez, Frank’s Tree Service Inc., Summit, NJ Stephen R. Heath, J & D Tree Pros, Inc., Apex, NC

The Maryland Licensed Tree Expert Exam schedule for 2013 is as follows: April 10, 2013 May 8, 2013 June 12, 2013 July 10, 2013 No test in August September 11, 2013 October 9, 2013 November 13, 2013 December 11, 2013 All tests are administered at DNR Headquarters in Annapolis. Pre-registration is required. Please call Ms. Romcesa Estep at 410-260-8531 or visit: www.dnr.state.md.us/forests/programspps/ newtreeexpert.asp, for an application. Note: You will need to sign in at the front desk in the lobby. Valid photo ID is required for entry. Directions and parking information can be found at: www.dnr. state.md.us/map.html

James Johnson, Carolina Tree Care, Inc., Concord, NC David M. Keane, Howard County Rec & Parks, Columbia, MD David Kearney, Trees, Inc., Cincinnati, OH Daniel McMains, J & D Tree Pros, Inc., Apex, NC John McMains, J & D Tree Pros, Inc., Apex, NC Ralph Nagle, Bartlett Tree Experts, Saint Michaels, MD Paul Newcomb, Jr., Newcomb’s Tree, Bryantville, MA Todd Perzynski, Bartlett Tree Experts, Westminster, MD Eric Satterfield, Mead Tree and Turf Care, Inc., Lisbon, MD Jason Sigman, Mayer Tree Service, Inc., Essex, MA Ryan Vanamburg, Mayer Tree Service, Inc., Essex, MA Brian K. Wills, Carolina Tree Care, Inc., Concord, NC Ben Wolff, Wolff Tree and Landscape, New Windsor, MD


14 What Research Has Discovered About Brown Marmorated Stink Bug

Stanton Gill, Extension Specialist in IPM and Entomology for Greenhouses and Nurseries, Central Maryland Research and Education Center University of Maryland and Professor, Landscape Technology, Montgomery College

The brown marmorated stink bug had its peak “hay-day� in 2010 and the early part of 2011. In the late summer of 2011 the population appeared to collapse. There is much speculation on why this collapse occurred. We suffered through two tropical storms with lots of rainfall in late summer just when the majority of the brown marmorated stink bugs (BMSB) were in the nymphal stage and were likely susceptible to the impact of the tropical storms. Some researchers noted the populations of BMSB actually started to decline two weeks before the tropical storms arrived. Whether it was weather or some other factor to cause the sudden decline is still being discussed among researchers from the states where BMSB has been most troublesome. The past is prolog. In the fall of 2012 we observed

In the fall of 2012 we observed an increasing population of brown marmorated stink bugs activity.

an increasing population of BMSB activity and greater numbers of overwintering adult BMSB. Most experts are predicting a bounce back population of BMSB in 2013. Not as high as the 2010 population but an increase over what we saw in the spring of 2012. This bug will not just go quietly into the night. In mid-March we are getting lots of reports of BMSB activity in residential homes in Central and Western Maryland. This is why the research continues on this bug. Meanwhile the BMSB population continues to spread outwardly, with 38 states reporting activity and areas of infestation continuing to spread and increase in Canada. While I was visiting Germany and Holland this summer, the people of these two countries were afraid of this bug making its way into their countries. They

15 repeatedly asked me about our new “American bug.” Don’t worry, I corrected them that it was a Asian import and not “American.” Still, they read the press and internet releases and see it as our problem now and they don’t want it. Meanwhile, it has successfully hitched a ride into Switzerland. Scientists at the USDA, Beltsville lab were successful in developing the pheromone produced by BMSB and put it into trapping system that could be field tested in 2012. The USDA team of entomologist, Tracy Leskey, Starker Wright, and Doo Yung have been working with several state specialists and orchards in testing out the new pheromone to detect populations of BMSB in fruit orchards. This pheromone is still experimental and not on the commercial market yet. The pheromone that has been on the market for the last two years, is actually a pheromone (2E,4E,6Z=10:COOMe) for another stink bug species called Plautia stali, and acts as an attractant for the brown marmorated stink bug. Tracy, Doo Yung and Starker are finding that the each pheromone has it benefit but at different times of the summer season. It may turn out that one type should be used in May and June and the other in mid to late summer. How Far do They Fly? Work done by Doo Yung and Starker Wright of USDA found that the adults will fly up to 1 kilometer, at least, in flight lab tests in which adults are tethered to a strobe machine that measures flight distance and speed. It is also recorded that they fly at about 1- 3 meters per second. They also charted the likelihood of sustained flight and found as the temperature get coolers, the bugs do not fly very far. When temperature rises 80 – 90 F then sustained flight activity increases dramatically. Light Attractants Starker Wright and Tracy Leskey tested out green, blue, white, and black light traps to see which is the most effective in capturing BMSB. The white light performed the best, followed by black lights, then blue light in attracting bugs to capture traps. Woody Plants That are Highly Attractive to BMSB Researchers have found that Ailanthus altissima (Tree of Heaven) and Paulownia species (Empress tree) are highly attractive to BMSB and eggs, nymphs, and adults can all be found feeding on these tree species during the growing season. Researchers are investigating if this tree can be used as a trap tree. There is work on injecting these trap trees with systemic insecticides such as formulations of acephate (AceCap) to kill BMSB feeding on these highly attractive host trees.

Thirty-eight states report activity of the brown marmorated stink bugs.

Do BMSB Feed on Herbaceous Annuals and Perennials? We have been conducting field research in Maryland and cooperating with Brian Kunkel at Delaware State Extension in recording if BMSB are feeding on herbaceous plant material. Herbaceous plants that are highly attractive to BMSB include sunflowers and Amaranth. The BMSB feed on the flower of sunflowers, feeding mostly on the front and back of the flowers, but also on the seeds. The BMSB will feed on foliage of amaranth but are highly attracted to the plant when it is in flower. Brian and I are developing a fact sheet on feeding preference of BMSB on annuals and perennials and this should be ready in early 2013. More Information on BMSB in 2013 We have developed a conference set for April 10, 2013 at the Carroll Community College to have researchers and Extension specialists from USDA, University of Maryland, Rutgers University, Delaware State University, VPI, and private industry present the results of their field research. This information will be boiled down into information you can use in advising the public on controlling BMSB in 2013. Contact us at Sgill@umd.edu or Sklick@umd.edu or call 301-596-9413 for more information and to obtain a copy of the agenda for this conference.

16 Occupational Tree Care Accidents in 2012 The Tree Care Industry Association (TCIA) reviewed 128 occupational tree care accidents reported by the media in 2012. Of these accidents, 84 were fatal.The average age of the deceased was 43 and the average age of the serious accident victim was 38. Super Storm Sandy was a significant contributing cause in fatal accidents in 2012. Six out of 10 fatalities occurring between November 1 and December 31 were storm workrelated; and they occurred in Connecticut, Massachusetts, Maryland, New Jersey and New York. Looking at the largest fatal accident categories more closely: Of the 19 electrocution accidents: • Six victims were electrocuted through conduc tive tools such as stick saws, pole saws and, in one instance, a rake. • Five victims made direct contact with conductors. • Two victims on the ground touched uninsulated vehicles. • In one case, a crane load line made contact with a primary conductor, energizing the ground around the crane. A worker died when he touched a detached chipper 20 feet away from the crane. • It could not be determined how five of the victims made contact. • Average age of the electrocution victims was 44. Of the 16 struck-by-tree fatalities: • Six were the fallers, four were other crew members, and it could not be determined what the remaining six were doing at the time of the accident. • In all but one instance, it was the tree being removed that killed the worker. • Average age of the victims was 45.

The 13 struck-by-tree-limb fatalities lacked enough detail for further analysis. The same can be said of the 12 fallfrom-tree fatalities except that in two instances the tree failed with the climber in it. In the nine fall-from-aerial-lift accidents, four can be attributed to equipment failure, and one resulted from a tip-over. These sobering numbers are a stark reminder of the dangers of tree care and highlights the need for tree care companies, along with homeowners/property managers who hire them to uphold the highest standards for worker safety. “Unfortunately for the industry overall, serious accidents seem to be increasing,” says Peter Gerstenberger, arborist for TCIA. “We need to transform the industry and create a safety culture that will keep all tree workers safe in an inherently hazardous occupation.” About the Tree Care Industry Association (TCIA): Founded in 1938, TCIA is a public and professional resource on trees and arboriculture. It has more than 2,100 member companies who recognize stringent safety and performance standards and who are required to carry liability insurance. TCIA also has the nation’s only Accreditation program that helps consumers find tree care companies that adhere to industry standards for quality and safety; maintain trained, professional staff; and are dedicated to ethical and professional business practices. With access to the latest and best safety standards and training, the typical TCIA member company has 50 percent fewer accidents than a typical non-member. If you’d like more information about this topic, or to schedule an interview with Peter Gerstenberger, please contact Amy Tetreault at (603) 314-5380 or atetreault@tcia.org. Reprinted with permission from the TCIA

17 News and Updates – Emerald Ash Borer Detecting EAB Using ‘Biosurveillance’ in Connecticut Article authored by Don Booth; submitted to MAA with permission of Bartlett Tree Experts

A newly developed method of monitoring the spread of emerald ash borer, known as biosurveillance, has been used to find the beetle for the first time in Connecticut. Biosurveillance in this case uses a wasp, Cerceris fumipennis, to capture the adult beetles. Female Cerceris wasps capture beetles, sting them, and then fly with the paralyzed beetle to their nests in the ground. Since these wasps are much better than humans at finding emerald ash borers, this is excellent method of early detection. Entomologists have developed several methods of collecting beetles from the wasps and can now even transport wasp colonies to areas where emerald ash borer is suspected. A program called WaspWatchers uses volunteers to adopt and monitor wasp colonies. These wasps may also be useful in monitoring for other newly-arrived buprestid pests such as the European Oak Borer. Emerald ash borer continues to expand its range in other areas. Quarantine zones have been expanded in many states, including Virginia and Tennessee. The quarantine prohibits the movement of firewood, ash nursery stock, ash timber and other material that can spread EAB. Fooling the Male Emerald Ash Borer with Decoys Article authored by Lorraine Graney; submitted to MAA with permission of Bartlett Tree Experts

Researchers have created a female Emerald Ash Borer (EAB) decoy which fools male beetles well enough to get them to fall into a trap! The idea came about when Dr. Baker, Entomologist at Penn State, learned of another researcher, Dr. Lakhtakia who could replicate insect body parts using polymers with different refractive indices to create the desired color and iridescence.

Dr. Baker knew that male EAB visually locate females as they fly about so the idea of luring males to a trap seemed plausible. He first attempted to lure males using dead females, but soon the shortcomings of fragility and apparent ‘disappearance’ of the dead beetles made this method impractical. The refinement of the decoy which is completely inert has led to a higher success rate of luring the male as compared to the dead female. The use of decoys allows for faster detection of the beetle in new locations and this opens the door to more efficient control methods. Mass. Officials Announce Quarantine to Half Spread of Emerald Ash Borer Officials from the Massachusetts Department of Conservation and Recreation (DCR) announced February 21 that a quarantine will be established in Berkshire County, in order to stop the spread of the invasive insect species Emerald Ash Borer (EAB). This decision comes after extensive survey in the affected area and public hearings. The quarantine will take effect March 1, 2013. The quarantine order means that certain products will be regulated from moving outside the regulated area, including all hardwood firewood (any piece of wood smaller than 48”), all ash nursery stock, and any ash lumber that has not been treated. Proper wood treatments include the removal of bark and half an inch of wood, dry kiln sterilization, fumigation, and heat treatments.

Participants of the program must be members of the MAA prior to the inception date of the policy.

Rooted in Maryland since 1914, IWIF Workers’ Compensation Insurance works with businesses all over Maryland to provide safe workplaces that reduce the number of accidents, increase productivity, and save money along the way. To learn more about workplace safety and to see how IWIF can partner with your company, contact your agent, call 800-264-IWIF or visit us at iwif.com.

A safe workplace trims workers’ comp expenses for members of the Maryland Arborist Association.

Trim your workers’ comp insurance expenses


19 New Members Pete’s Tree Experts Peter Bennett 1314 Conowingo Road Bel Air, MD 21160 410-420-0748

Elswick & Elswick Inc., t/a Greentree Joel Comanda 885 Marlboro Road Lothian, MD 20711 410-741-0776

Gambrills Equipment Co., Inc. George Pusloskie, Jr. 8001 Quarterfield Road Severn, MD 21144-2118 410-969-3947

Rasevic Landscape Company Mark Rasevic 5200 River Road Building 6 Bethesda, MD 20816 301-951-1244

Richard Sommer PO Box 165 Kensington, MD 20895 240-304-6380

Tree Services, Inc. t/a Adirondack Tree Experts William Callahan 11304 Rhode Island Ave Beltsville, MD 20705 301-595-2827

Instructions for Member Login The MAA recently launched its new website. In addition to its new design, the website also integrates the MAA membership directory. Members may access the membership directory by executing the following process: • Go to the website, www.mdarborist.com • In the upper right hand corner, enter your username and password, and select “Go.” (Since this is a brand new system, most of you will not know your user name and password. To retrieve your username and password, click on the text that says “Forgot your password? Click here.” Then enter your e-mail address and your user name and password will be sent to you. If you do not receive an e-mail within a minute, check your spam box. If you still do not have the password e-mail, then the system does not recognize the e-mail address you are using. Give us a call in the office and we’ll let you know what e-mail address we have on record for you.) • The next screen shows your company profile. On this page you can edit any information that you need to, including changing your username and password, if desired. • On this same screen, review the menu on the left. Select “Online Directory” to access the membership directory. • On the next screen, you can enter specific search criteria, or just hit the search button, and all members will appear listed on your screen. The site has two searchable membership directories. Members may search the full membership database, by logging in to the membership portal. Non-members

may view only members classified as Licensed Tree Experts, from the Consumers tab of the website. Also, please note that a full Maryland Green Industry Calendar is accessible from the homepage of the website. We update this calendar frequently and include many events sponsored by multiple Maryland organizations, as well as MAC-ISA and TCIA. So, if you are looking for events, remember to check this website. If you have any questions about the new website or membership directory, please let the MAA office know. The site is still brand new and we’ll be working to polish it off within the next few months. We can be reached at mdarboristassoc@aol.com or via 410-321-8082.

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20 Early Season Defoliators Many species of caterpillars feed on trees and shrubs. Caterpillars are larvae - the immature stage of moths and butterflies that hatch from eggs throughout the growing season. The most serious of the defoliators occur in early spring when leaves are just emerging. These early spring caterpillars have the biggest impact on tree health. This time of the year, bud-break and leaf development are fueled by stored carbohydrates that were produced from photosynthesis during the previous growing seasons. Those carbohydrate reserves are replenished when new leaves are produced and starts over the process of photosynthesis. When trees are defoliated early before carbohydrates can be replenished, this causes further depletion of reserves when another set of leaves must be produced in the same year. Keep in mind that successive years of early defoliation or heavy defoliation in combination with other stresses such as drought, transplanting, or old age can result in decline and death. You should monitor the landscapes you manage as defoliated trees are much more susceptible to attack by secondary pests such as borers, bark beetles and canker and root disease pathogens. Reprinted with permission of Bartlett Tree Experts

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Shady Notes Spring 2013  

Maryland Arborist Association Newsletter for Spring 2013

Shady Notes Spring 2013  

Maryland Arborist Association Newsletter for Spring 2013