Cabbage stem flea beetle larva on OSR© Blackthorn Arable
With no effective insecticides to control resistant cabbage stem flea beetles in oilseed rape in the short term, affected growers will have to switch to radical non-chemical means to get on top of the pest. While the worst pyrethroid-resistant flea beetles are still confined to hotspot areas in the eastern counties, increased crop losses in 2015 were reported in in the East Midlands, Yorkshire and Humberside and the South West. The increasing problem is described as a “major crisis” by […]