DDT resistance in insects

DDT resistance in insects occurs when they evolve the ability to survive exposure to the insecticide DDT. This happens through genetic changes that enable insects to detoxify or resist the effects of DDT, often by producing enzymes that break down the chemical or by altering their nerve receptors. Over time, as DDT is used repeatedly, these resistant insects survive and reproduce, passing the resistant traits to their offspring. This process leads to a population of insects that no longer respond to DDT, making the insecticide less effective for controlling pests.