Testing aphids is a vital part of detecting changes in insecticide resistance, as new threats such as neonicotinoid-resistant peach potato aphids lead to changes in the advice on which aphicides to use. Controlling aphids is important, as key species spread costly viruses, such as beet yellows in sugar beet and turnip yellows in oilseed rape. Steve Foster of Rothamsted Research co-ordinates a project collecting live aphids from field and protected crops across the country and tests for shifts in sensitivity to a range […]