Propagation expanding method for parasitic wasps of Spodoptera frugiperda

Abstract

The invention discloses a propagation expanding method for parasitic wasps of Spodoptera frugiperda. The propagation expanding method comprises the following steps: S1, cultivating the Spodoptera frugiperda; S2, inoculating the Spodoptera frugiperda for bee inoculation; S3, rejuvenating bee species; S4, releasing bee cocoons; S5, breeding the Spodoptera frugiperda; and S6, rejuvenating the Spodoptera frugiperda. The Spodoptera frugiperda are fed indoors to serve as propagation expanding hosts of Taiwan abdominal cocoon bees, the temperature, the humidity and the like are artificially regulatedto enable adult periods of the Spodoptera frugiperda and the Taiwan abdominal cocoon bees to be consistent, and adult Taiwan abdominal cocoon bees are parasitized by using egg mass of the Spodopterafrugiperda to breed the Taiwan abdominal cocoon bees, wherein a rejuvenation technology, a breed conservation technology and the like of seed bees and host populations exist. The final purpose is to artificially produce a large number of parasitic natural enemies, namely the Taiwan abdominal cocoon bees, then field release is performed in the spawning period of target pests, the field parasitism rate of the target pests is improved, the population number of the target pests is controlled, the degree of harmful crops is alleviated, the use amount of chemical pesticides is reduced, the yield andquality of agricultural products are improved, and the life safety of people and the ecological environment safety are protected.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to a method for the propagation of Spodoptera frugiperda parasitoids, breeding parasitic natural enemies, releasing them in the field, increasing the number of natural enemies in nature, increasing the number of target pests parasitized in nature, and effectively controlling target pests Reduce the number of populations, reduce its damage to crops, reduce the frequency and amount of chemical pesticides used, improve the quality of agricultural products, and promote the safety of agricultural products. Background technique [0002] The key technology of using parasitoids to control pests is to be able to artificially reproduce in large numbers, and to effectively release and control damage during the occurrence of target pests. In this regard, my country is at the leading level in the world in artificial cultivation and mass release technology represented by Trichogramma. In the 1950s, si...

AI Technical Summary

Problems solved by technology

A. formosanus is an egg-larva intertemporal parasitic wasp. There is no research on the biology of A. formosanus and its artificial feeding and reproduction techniques by using Spodoptera frugiperda at home and abroad.