Companion cropping and stimulant sprays could help protect oilseed rape against pest attacks in the absence of banned neonicotinoids insecticide seed dressings. Planting a sacrificial companion crop of mustard at the same time as a Clearfield variety of oilseed rape can reduced cabbage stem flea beetle attacks, according to agronomy group ProCam. The theory is that mustard, which is a brassica like rapeseed, lures beetles away so the numbers feeding on the oilseed rape are diluted, says the group’s technical […]