Manitoba Crop Pest Update

May 18, 2021

The province has released its first Crop Pest Update of the season:

Summary

Insects: Flea beetles are emerging. Striped flea beetles, the earlier emerging of the two more common flea beetles in canola, are quite noticeable in some areas. Monitor early emerging canola for feeding from flea beetles and other early-season insects.

Weeds: Due to the dry conditions and cooler temps weed growth has been slow. Keep scouting, however, as there may be more there than you think! Check labels to see when burn-offs can be sprayed relative to crop planting and/or emergence. And when spraying after cool nights or light frosts, weeds need to be actively growing to take up the herbicide. Weeds should be sprayed when temps are 8-10 degrees and rising, for at least a few hours.

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