Insecticidal composition for preventing and controlling Cydia trasias

Abstract

The invention discloses an insecticidal composition for preventing and controlling Cydia trasias. The insecticidal composition comprises an insecticide and sex pheromones of the Cydia trasias, whereinthe insecticide is prepared from, by weight, 1 to 8 parts of rotenone, 2 to 12 parts of a neonicotinoid insecticide, 4 to 12 parts of a benzoylurea insecticide, 1 to 5 parts of beta-cypermethrin, 2 to 5 parts of emamectin benzoate, 1 to 7 parts of a phenylpyrazole insecticide and 2 to 5 parts of sophocarpidine. The insecticides and the synergistic effects of the sex pheromones of the Sophora japonica and the insecticides are adopted to realize the purpose of accurately and directionally killing insects, so the waste of the insecticides in the using process is reduced, the utilization rate ofthe insecticides is increased, the pesticide cost of farmers is reduced, the service life of chemical pesticides is prolonged, and the pesticide resistance cost is delayed.

Description

technical field [0001] The invention relates to the technical field of plant disease and insect pest control, and more specifically relates to an insecticidal composition for preventing and controlling the toricula chinensis. Background technique [0002] Chinese pagoda tree is a characteristic tree species commonly used in gardens. Its branches and leaves are dense and the shade is like a cover. It is suitable as a shade tree in the garden, and it is mostly used as a street tree in northern China. It is also very suitable for planting in parks, around buildings, neighborhood residential areas and lawns. It has considerable flowers in summer and autumn, and is an excellent nectar source plant. The buds can be used as dyes, the pulp can be used as medicine, and the seeds can be used as feed. It is also a tree species for windbreak and sand fixation, timber and economic forest. It is a good shade tree and street tree species in urban and rural areas. It has strong resistance...

AI Technical Summary

Problems solved by technology

However, with the expansion of the cultivation area of ​​Sophora japonica, the strengthening of human intervention activities, and the increase in the resistance of pests and diseases, the occurrence of pests and diseases of Sophora japonica is becoming more and more serious.

[0003] Among them, the Chinese Sophora japonica is one of the main pests of the Sophora japonica. In the north, there are usually two generations per year. The larvae damage the 1-year-old shoots, and the newly hatched larvae mostly enter the branches from the base of the pinnate petiole. , causing the compound leaves or twigs to wither or break off, seriously affecting the growth of Sophora japonica

However, in recent years, due to single or unscientific use of drugs, the Chinese Sophora japonica has developed resistance to the currently used pesticides, which has also become a major problem in chemical control.

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