Gnn141202

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Volume 40, Number 18 | DECEMBER 2, 2014

$4.25

PRACTICAL PRODUCTION TIPS FOR THE PRAIRIE FARMER

www.grainews.ca

Fusarium in the bin A third of CWRS samples submitted to the CGC were downgraded due to fusarium. Now what? BY PATTY MILLIGAN

S

ince the first major outbreak in Manitoba in 1993, fusarium head blight (FHB) has established itself in Manitoba and eastern Saskatchewan and continues to move into western Saskatchewan, Alberta, and northern B.C. Farmers in some parts of the Prairies are now accustomed to dealing with the fungal disease and its dominant strain, F. graminearum, and are incorporating management practices to prevent its spread. According to Daryl Beswitherick, program manager for quality assurance and standards with the Canadian Grain Commission, a third of all the samples of CWRS submitted to the CGC’s Harvest Sample Program in 2014 have been downgraded due to fusarium damage. The high infection rates were likely spurred on by the soggy weather in Manitoba and Saskatchewan. Only six per cent of those samples downgraded came from Alberta and northern B.C. Fusarium graminearum affects the development of the kernel, so grain yield and quality can drop significantly. It also produces a toxin called deoxynivalenol (DON), which makes grain unsuitable for milling, malting,

brewing and producing ethanol, and limits its use as livestock feed. Farmers will likely experience grade loss, restricted marketing opportunities, added costs, and lost income as a result of a fusarium infection. According to Alberta Agriculture and Rural Development, losses in Canada have ranged from $50 million to $300 million annually over the past two decades; future losses are projected to run between $30 to $132 per acre depending on the crop and the area. While weather plays a huge role in the levels of fusarium found in Prairie crops in any given year, farmers can still work to minimize the possibility of infection. They can plant quality fusarium-free seed, select varieties that are less susceptible to fusarium, treat seed, rotate crops, manage stubble and apply a foliar fungicide at the flowering stage. If all of these steps fail, and fusarium-damaged kernels (FDK) in wheat or fusarium mould in barley are visually detected in the field pre-harvest, producers can adjust combine settings to blow the lighter, damaged seeds out the back. The residue must be chopped and spread, and that field taken out of cereal produc-

tion for two to three years to lower reinfection rates. If, despite their best efforts, producers bring in a crop with a high level of fusarium, they should store it separately at 14 per cent moisture in order to minimize the spread of the mould. But what happens next? With bins full of fusarium-infected grain on their hands, what can farmers do to successfully get their crops to market? If their crop is downgraded due to fusarium damage, is there a way to get it back up? Acceptable fusarium levels according to grade and crop can be found on the primary grade determinants tables on the Canadian Grain Commission website. (Find it quickly at www.grainscanada.gc.ca by searching “guides don” in the search box at the top right corner.) Unfortunately, post-harvest treatment options are nonexistent at this time. Currently, no effective physical or chemical treatment has been found to neutralize the fungal infection and reduce the DON levels in harvested grain. The levels are affected little or not at all by the application of heat, acids, mycotoxin binders, or the anti-caking agent HSAS (hydrated sodium aluminum silicate).

PHOTO: LES HENRY

In This Issue

Publications Mail Agreement Number 40069240

Wheat & Chaff ..................

2

Features ............................

5

Crop Advisor’s Casebook

9

Columns ........................... 15 Machinery & Shop ............ 24 Cattleman’s Corner .......... 35

Northgate grain terminal LEE HART PAGE 10

May God's richest blessings come to you and your family this Christmas. John M. Smith

Vertical seeding

SCOTT GARVEY PAGE 24

FarmLife ............................ 40

` “Straight Cut”

CARDALE

“More Wheat...Less Shatter” seeddepot.ca


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