Method for preventing and treating greenhouse flower insects by using brown lacewing
A technology for lacewings and flowers is applied in the field of biological control of agricultural pests, and can solve the problems of the number of eggs laid, the hatching rate of eggs, and the predation rate of larvae, and the emergence rate of adults, and the like, and achieve good control effect and effectiveness. The effect of growing and increasing egg production
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[0025] 1. Test method: (test repeated three times)
[0026] (1) 50 plates of soybean seedlings with 2-3 true leaves are moved to the aphid breeding room, and each soybean seedling is inoculated with 5 soybean aphids. Standby after 7 days;
[0027] (2) move the adult of the female brown gnat to be laid eggs into the raising box, the raising box is a transparent plastic box, 20cm long, 12cm wide, and 7cm high; half of the box cover is reserved, and the other half is covered with gauze, and the gauze The aperture of net is 0.15mm; Put the soybean aphid raised in step (1) together with a small amount of soybean seedling branches and leaves together in the breeding box, and the amount of soybean aphid fed by each brown fly adult is 30-45 head / day, prepare 30 breeding boxes, each of which has 1 adult female brown fly gnat waiting to lay eggs;
[0028] (3) After the female brown fly adult began to lay eggs, the collected ovum was moved into an empty rearing box, and the amount of e...
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