Method for indoor breeding of trichogramma dendrolimus by using bombyx batryticatus eggs

Abstract

The invention discloses a method for indoor breeding of trichogramma dendrolimus by using bombyx batryticatus eggs. The method comprises the following steps: killing embryos in the silkworm eggs so as to obtain treated silkworm eggs, and breeding the trichogramma dendrolii on the treated silkworm eggs, specifically, putting the treated silkworm eggs into a container through an opening of the container, and inoculating the trichogramma dendrolii into the container, wherein trichogramma dendrolimus is female trichogramma dendrolimus subjected to eclosion and mating; sealing the opening of the container with an air-permeable material, and then placing the container in an artificial climate box for culturing; after the culture time is 24+/-2 hours, moving the trichogramma dendrolimus out of the container; and placing the silkworm eggs in a climate box, and continuing to culture under the culture conditions until the eggs of trichogramma dendrolimus are subjected to eclosion.

Description

technical field [0001] The invention relates to an artificial propagation method of insect egg parasitoid Trichogramma pine caterpillar, in particular to a method for indoor propagation of Trichogramma pine caterpillar by using camphor silkworm eggs, belonging to the technical field of biological control of agricultural pests. Background technique [0002] Camphor silkworm (Eriogyna (Saturnia) pyretoum Westwood), belonging to Lepidoptera Eriogyna pyretoum, is a kind of omnivorous pest, distributed in Zhejiang, Guangdong, Guangxi, Fujian and other places, and feeds on camphor leaves with larvae. In severe cases, the leaves of the entire tree are eaten up, and even the tree dies. The insect has one generation per year, and overwinters as a pupa in cocoons in branches or bark gaps, understory shrubs, etc., and begins to emerge in the next year. The adults can mate and lay eggs shortly after eclosion, and the adults have phototaxis. The prevention and control of camphor silkwor...

AI Technical Summary

Problems solved by technology

In the 1980s, Zhejiang Province once established a corresponding production base, but due to geographical and seasonal restrictions, neither the planting of oak trees nor the breeding of silkworms in the south has achieved large-scale production.

If northern tussah silkworm eggs are used for reproduction, cold storage needs to be established in Zhejiang Province to transport tussah silkworms from the north to the south for preservation in order to maintain their mass reproduction, which is labor-intensive, time-consuming and financially invested; therefore, it is difficult to realize the reproduction of local Trichogrammas in the south mass production

And the above-mentioned method of raising Trichogramma still has following deficiencies, such as low parasitism rate and eclosion rate, host squeezed silkworm eggs are difficult to obtain in summer and autumn, parasitic species are mostly limited to the Trichogramma type in Northeast China, etc.

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