Alberta Agriculture’s cabbage seedpod weevil survey results for 2018 are mapped, as shown above. Click here for a link to the live map. In areas with a red marker, 25% or more of samples reported are above the threshold. To report your sweep net results, text “Canola CSPW” (with the space) to 393939.
Scout at 10-20% flower (or approximately one week after first flower) using a sweep net. The economic threshold is 25-40 CSPW per 10 sweeps generally across the field. Doing 10 sweeps per sample site is important. READ MORE