Long-acting low-toxicity high-efficiency insecticidal composition

Abstract

The invention provides a long-acting low-toxicity high-efficiency insecticidal composition. The composition comprises methoprene and at least one chloronicotinyl insecticide. Through synergism between methoprene and the chloronicotinyl insecticide, the scope of control objects and application fields of the insecticide is broadened; different existing forms of insects in each stage of the whole life cycle can be effectively controlled; the effective utilization rate of the insecticide is increased; cost for the insecticide is reduced for peasants; the service life of chemical pesticide is prolonged; and resistance generation is delayed.

Description

technical field [0001] The present invention relates to a low-toxicity, long-acting, high-efficiency insecticidal composition, more specifically, the present invention relates to the composition of methoprene and one or more neonicotinoid insecticides, used for controlling termites, Sanitation, storage and crop pests. Background technique [0002] Methoprene is an insect growth regulator and juvenile hormone analog that appeared in the 1970s. As a biological insecticide, its function is to control the growth and development of pests, so that larvae cannot change into pupae or pupae cannot become adults, resulting in changes in physiological form, inhibiting their growth and development, making them unable to mature and die naturally. Because its mechanism of action is different from traditional insecticides that act on the nervous system in the past, it has the advantages of low toxicity, less pollution, and little impact on natural enemies and beneficial organisms, and thi...

AI Technical Summary

Problems solved by technology

Methoprene is effective on older larvae and newly laid eggs, acting on older larvae to cause a large number of deaths during the metamorphosis stage, acting on newly laid eggs or female adults, showing ovicidal activity, causing deformity of hatched larvae, but the methoprene Ester has no effect on the eggs and male adults after 24 hours, and the quick-acting property is poor. Generally, the death will not appear until 1 to 2 weeks after application, and the peak of death will not appear until 3 to 4 weeks after application.

Methoprene is highly volatile and has a long lasting effect indoors. It is currently mainly used for the control of storage pests and sanitary pests. However, due to its volatile characteristics, it is more volatile in outdoor and light conditions, causing its It is difficult to maintain a high effective insecticidal concentration at the location of application. On the premise of ensuring insecticidal activity, it is necessary to greatly increase the dosage per unit area and shorten the application cycle, which also makes the use of methoprene in outdoor places such as farmland crops restricted. restricted

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