Light environment control method for breeding trichogramma dendrolimi with oak silkworm eggs

Abstract

The invention discloses a light environment control method for breeding trichogramma dendrolimi with oak silkworm eggs; the oak silkworm eggs on which the trichogramma dendrolimi are parasitical are adopted as parental eggs, and the fresh oak silkworm eggs on which nothing is parasitical are adopted as progeny eggs; the oak silkworm eggs are controlled to be under a purple light illumination condition; after a parasitic link is over, the parental eggs and the trichogramma dendrolimi are removed; the progeny eggs are placed under a red light illumination condition; after the growth and the eclosion of the trichogramma dendrolimi in the progeny eggs, the trichogramma dendrolimi can continue to serve as bees to repeat the process, so that the population is reproduced generation by generation, and finally a required number of trichogramma groups are finally obtained; and a biological-control finished product is processed. Due to the adoption of the light environment control method for breeding trichogramma dendrolimi with oak silkworm eggs, the parasitic rate of the trichogramma dendrolimi can be improved by 2.25 percent to 11.25 percent, the eclosion rate can be improved by 2.99 percent to 11.04 percent, and the number of identical bees and the legacy bee rate have no significant difference. In multi-generation breeding, the number values are further increased because the population is reproduced generation by generation.

Description

Technical field [0001] The present invention provides a halo regulation method for raw silkworm egg breeding loose caterpillars, which belongs to the field of biological prevention and treatment of diseases and insect pests. Background technique [0002] The current light environmental regulation method for breeding pine caterpillars with sulfur eggs is usually: parasitic links as no light conditions, and the development link is normal indoor lighting conditions, that is, the development link is natural light (the wavelength wavelength of the visible light area is 380nm-750nm), and the light is strong.400-2500lux, natural light cycle.In the 1970s, Sun Shixue and other methods, such as Sun Shixue, Li Yingyue, Qinglong County Forests and insect prevention stations, etc., and other methods of pine caterpillary bare -eye bees were used to parasitize silkworm eggs;The Division's Laboratory Laboratory reports the breeding method of red -eyed bees with light and light -free binding. Th...

AI Technical Summary

Problems solved by technology

In the 1970s, Sun Shixue et al., Li Guoguo, Qinglong County Forest Disease and Pest Control Station, etc. reported the method of parasitizing tussah eggs by Trichogramma pine caterpillars in the absence of light respectively; Wei Xiangting, Qin Shaozeng, and farmers in Yuhong District, Shenyang City The biological control laboratory of the Institute of Science and Technology reported the breeding method of Trichogramma with light and dark respectively. In the method, the parasitic link was carried out under the condition of light in the early stage, and the Trichogramma was attracted by light to gather on the egg card. Trichogrammas gather more and then move into a dark environment, and the parasitic process still takes place in a dark environment; in the existing reports, the light environment is usually not regulated during the development process, and the normal indoor lighting is used; because China is the main production area of ​​tussah silkworms, foreign related Research not reported