Composite insecticide composition containing Lepimectin and hexaflumuron and application thereof

The invention discloses a composite insecticide composition containing Lepimectin and hexaflumuron and the application thereof. The insecticidal active constituents of the insecticide composition are Lepimectin and hexaflumuron, and the weight ratio of Lepimectin to hexaflumuron is (0.1-80):(0.5-80). The insecticide composition can generate a good synergistic interaction effect, overcomes and delays pest resistance to insecticides, has a high insecticide speed and long lasting period, reduces pesticide cost and has a control effect obviously better than that of single application of Lepimectin or hexaflumuron. The insecticide composition can control lepidoptera pests on crops, especially cotton bollworms and stem borers, and the effect is obviously better than that of single application of Lepimectin or hexaflumuron.