Expanding propagation method for aphidius gifuensis ashmeads

Abstract

The invention discloses an expanding propagation method for aphidius gifuensis ashmeads. The method comprises the following steps: inoculating aphidius gifuensis ashmead females which are about to spawn on rape seedlings with myzus persicaes, conducting aphidius gifuensis ashmead cultivation, collecting the aphidius gifuensis ashmeads, and achieving expanding propagation. According to the expanding propagation method for the aphidius gifuensis ashmeads, myzus persicaes serve as hosts of aphidius gifuensis ashmead propagation, optimized aphidius gifuensis ashmead inoculating ratio, optimized inoculating opportunity, aphidius gifuensis ashmead collecting are involved, a parasitic wasp expanding propagation technology of being high-efficiency, economical and easy and convenient to apply is formed through repeated exploration and improvement, and therefore the purposes of biological preventing and treating injurious insects are achieved.

Description

technical field [0001] The invention belongs to the field of biotechnology, and relates to a method for multiplying the Aphidia persicae, in particular to a method for multiplying the Aphidia persicae as a host. Background technique [0002] Aphids are one of the most destructive pests on earth. There are about 4,400 species of aphids that have been found in 10 families, of which about 250 species are serious pests for agriculture, forestry and horticulture. Often clustered in leaves, tender stems, flower buds, terminal buds, etc., sucking plant juice through thorns, causing leaves to shrink, curl, and deform, causing plant nutrition loss and mechanical damage to organs. In addition, aphids can spread plant virus diseases, The honeydew it secretes can breed a variety of plant fungi and bacteria and other pathogenic organisms, causing the occurrence and prevalence of plant diseases. Aphids also have a very strong reproductive instinct. Some species of aphids have a unique a...

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Problems solved by technology

[0007] In the practice of propagating Aphids persicae, we found that the above-mentioned techniques are not suitable for the northern regions of my country. The main manifestations are: first, the tobacco growth cycle is long, and it often takes more than 90 days from sowing to inoculation of aphids, requiring a lot of manpower and material resources ; Second, the growth of tobacco requires a large space, and a single tobacco plant can grow to a height of 2 meters. To arrange tobacco cultivation with a spacing of 1*1 meter, a large area of ​​propagation site is required; third, tobacco leaves are sticky, It is not conducive to the collection of parasitic bees; fourth, the collection of bees is not conducive to product storage and transportation

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