No Silver Bullet For Managing Clubroot

Jan 27, 2020

A canola program was held Tuesday morning at Manitoba Ag Days.

Justine Cornelson with the Canola Council of Canada talked about keys to managing clubroot.

"Clubroot is a unique plant disease which we seem to struggle with managing," she said. "It continues to spread across the Prairies. You have to be scouting for it, you need to be in the field pulling up plants having a look at that root system to see if you have an issue or not."

Other management strategies include lengthening the rotation for canola to one in three years and using a clubroot resistant variety. Patch management is also important as is minimizing soil movement.

Cornelson notes that clubroot is now found all across Manitoba at low levels. She adds there are eight RM's showing signs of the disease with a new one in the Interlake discovered this past year. There are close to 40 fields with confirmed plant symptoms.

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Video: Dicamba Returns for Georgia Farmers: What the New EPA Ruling Means for Cotton Growers

After being unavailable in 2024 due to registration issues, dicamba products are returning for Georgia farmers this growing season — but under strict new conditions.

In this report from Tifton, Extension Weed Specialist Stanley Culpepper explains the updated EPA ruling, including new application limits, mandatory training requirements, and the need for a restricted use pesticide license. Among the key changes: a cap of two ½-pound applications per year and the required use of an approved volatility reduction agent with every application.

For Georgia cotton producers, the ruling is significant. According to Taylor Sills with the Georgia Cotton Commission, the vast majority of cotton planted in the state carries the dicamba-tolerant trait — meaning farmers had been paying for technology they couldn’t use.

While environmental groups have expressed concerns over spray drift, Georgia growers have reduced off-target pesticide movement by more than 91% over the past decade. Still, this two-year registration period will come with increased scrutiny, making stewardship and compliance more important than ever.