July 20, 2016
To answer the question, not likely. In most cases, only individual or small groups of plants are infested. The nominal threshold in canola is when 10-20% of plants have clusters…
July 20, 2016
Misshapen sack-shaped pods are often the result of aster yellows…
July 13, 2016
Berth armyworm moth counts are generally low (fewer than 300 per trap) across the Prairies, which means a reduced risk for worm damage over the coming weeks…
July 6, 2016
Before spraying, make sure your canola is at the right stage to be damaged by the worms and that the worms are actually the species you’re trying to control. Here’s how to tell the difference…
June 30, 2016
Lygus is one insect you may find in canola this week, but spraying lygus before pod stages rarely provides an economic benefit. Lygus do most of their damage at the pod stages…
June 23, 2016
General wilting is likely environmental, but patches or individual plants could have some other cause. Dig them up carefully and look at their roots for clubroot galls, root diseases and cabbage root maggots…
June 15, 2016
Pea leaf weevils (bottom) can be found in canola but the only weevil of concern is the cabbage seedpod weevil (top). Thank you Shelley Barkley of AAF for the excellent photos…
June 1, 2016
Tracey Baute and Meghan Moran with the Ontario Ministry of Agriculture, Food and Rural Affairs and Dr. Rebecca Hallett at the University of Guelph, School of Environmental Sciences, have a new infosheet to help Ontario canola growers manage the insect…
April 6, 2016
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