The invention relates to the field of biological and chemical prevention and control, in particular to a method for preventing and controlling aphids by combining predatory
natural enemies orius sativus and afidopyropen, and the method comprises the step of preventing and controlling the aphids with resistance to chemical pesticides. The invention provides a novel prevention and control technology combining biological prevention and control and chemical prevention and control, aims at combining'
insect control by insects' and'
insect control by medicines', and explores a novel prevention and control way. The predatory natural enemy can prey for prevention and control for a long time, the unique action mechanism and combined prevention and control of the afidopyropen are exerted, the prevention and
control effect is remarkably improved, the
duration time is long, the cost is saved by 80% or above compared with that of independent application of the predatory natural enemy, and the prevention and
control effect is better than that of independent application of the afidopyropen. The combined application of
natural enemies and pesticides can reduce the use amount of chemical pesticides, reduce the damage rate of crops,
delay the generation of pest resistance to drugs, develop a new means of pesticides in the field of
pest control, and open up an important way for a comprehensive control technical
system of resistant aphids.