Chemical insecticides remain useful only for a limited time. Explain concerning evolution with a suitable example.
Chemical pesticides are used in agricultural fields to get rid of various pests and insects that cause crop loss. These chemical insecticides affect some of the pest's metabolic characteristics, resulting in the pest's death. However, these pests develop immunity over time as a result of various generations. Pests that are resistant to these insecticides are born as a result of mutations. These insecticides will thereafter be useless. As a result, you should avoid using these insecticides.
