The swede midge, Contarinia nasturtii (Diptera: Cecidomyiidae), is an invasive insect pest of canola (Brassica napus L and B rapa L) and other brassicaceous vegetable crops in Canada It has caused serious damage to canola crops in eastern Canada and is expected to have similar effects on canola…
Weeds with resistance to imidazolinone (Group 2) herbicides survive in-crop herbicide application, compete with the crop, and produce seeds that create future weed problems Wiping non-selective herbicides onto surviving tall weeds above the crop could limit weed seed production Two field…
