Insecticide resistance in pests found in UK crops is not new, but an increasing number of insect species are now able to tolerate some of the chemistry used to control them.
Experts believe this is largely due to overuse of insecticides and applications at lower rates than those recommended on the product label. Hard-to-control pests are now becoming a problem in a variety of crops, including cereals, oilseeds, potatoes, peas, beans, field vegetables and in grain stores.
Here, Crops identifies which pests have developed resistance, which chemical group or groups they are resistant to and which crops they affect. It should be noted that three of the pests only have suspected resistance and cases of control failures are being investigated.