Calls to Bayer Garden’s advice line are being dominated by gardeners looking for a way to tackle the infestation of blackfly that is threatening their bean crops.
Blackflies, greenflies, whiteflies and aphids have prospered in warm weather this summer, particularly on beans.
Bayer Garden consumer advisor Anita Dent said: "The blackfly is attacking all types of beans including runner, dwarf and French. Callers are looking for a way to safely tackle the infestation without affecting their ability to consume the crops. The solution is to use a contact insecticide; the beans can be harvested seven days after application, which is important since regular picking will prolong the harvest period."
Dent recommended Sprayday Greenfly Killer, which was previously only available to professional growers, as one such solution.
"Many people have winter brassica crops and sprouts in the ground for later in the year and once again they are being affected by whitefly and the cabbage white caterpillars," she added.