Grainews

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feature

cattleman's corner

Barley 180 Report

Sean McGrath on cattle

How high can we push barley yields with high-end inputs? 7

It’s far cheaper to let those cows feed themselves 39

Volume 43 · number 03 february 7, 2017 · $4.25 Practical production tips for the prairie farmer www.grainews.ca

crop production

Fusarium head blight as bad as it sounds

By Geoff Geddes

A

s demonstrated by terms like rhinorrhea, which is basically a runny nose, some conditions sound worse than they are. In the case of fusarium head blight (FHB), a cereal disease affecting small grains and corn, the nasty name fits like a glove. In her research work on plant pathology for The Grain Research Centre (CEROM) in Quebec, agronomist Dr. Sylvie Rioux has worked extensively on FHB and seen its effects. “It’s caused by a range of fusarium species, but easily the most damaging one is Fusarium graminearum (F. graminearum),” said Dr. Rioux. “Apart from causing yield losses and grade reductions, F. graminearum’s main damage comes from the presence of mycotoxins in the grains. These toxins — among which the best known is vomitoxin or DON (deoxynivalenol) — are produced by the pathogenic fusarium species which infect cereal ears in the field.” Mycotoxins are harmful to both animals and humans. Whether producers are focusing on feed or food, the harm to end use marketability can be devastating. And while outbreaks of the disease — which is promoted by wet weather and high temperatures — are more frequent in Eastern Canada than in the Prairies, in 2016 it turned up in many places where it hadn’t been seen before.

An Alberta study says fusarium can easily cost farmers $50/acre. What you can do?

photo: randy kutcher

Hitting them where it hurts

Publications Mail Agreement #40069240

Fusarium head blight can do severe economic damage. Rioux quoted a paper from 2004 that estimated the annual cost of fusarium head blight losses in Manitoba at $50 million. See Fusarium on Page 5 

PLU S

Les Henry’s annual soil stubble moisture map There’s just one word to describe November freeze-up conditions across the Prairies: WET 26

CONTENTS 3 | COLUMNS 21 | CATTLEMAN’S CORNER 39


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