Digging into Research
Bioclimate simulation models were used to understand how abiotic factors affect canola yield and cabbage seedpod weevil distribution and abundance. Cabbage seedpod weevil (Ceutorhynchus obstrictus) was introduced to North America from Europe, and was first collected in the Canadian Prairies in southern Alberta in 1995. The...
Cabbage seedpod weevil continues to expand across the Prairies, contributing to yield losses of 5 to 30%. Insecticidal control remains the main management strategy despite decades of research into alternative biological and cultural methods of control. The cabbage seedpod weevil, Ceutorhynchus obstrictus (Marsham) (Coleoptera: Curculionidae), is native to...
Research in southern Alberta found that canola fields seeded in April were the most susceptible to cabbage seedpod weevil. A new action threshold of 25 to 40 cabbage seedpod weevils per 10 sweeps at early flowering stage was developed. When cabbage seedpod weevil populations were...
