High-efficiency aphidius gifuensis propagating method capable of improving formation balance degree of mummified aphids of aphidius gifuensis

Abstract

The invention discloses a high-efficiency aphidius gifuensis propagating method capable of improving a formation balance degree of mummified aphids of aphidius gifuensis. The method comprises the following steps: step (1) inhibiting apical dominance of floating and moisture tobacco plants; step (2) performing balanced myzus persicae propagation: introducing myzus persicae onto leaves of the lowerpart of the floating and moisture tobacco plants, performing self diffusion propagation on the myzus persicae, and after axillary buds are removed, performing coating by using a growth inhibitor to continue to inhibit the apical dominance; step (3) performing balanced parasitism: when an average amount of the myzus persicae on the floating and moisture tobacco plants reaches a required value, introducing adult aphidius gifuensis without hyperparasitoids into a net cover, and covering the net cover with a sunshade net during introduction of the aphidius gifuensis; and the step (4) collecting the mummified aphids. The method disclosed by the invention combines the advantages of strong bearing capacity of the tobacco plants and convenient management and short cycle of floating tobacco seedlings, at the same time, water and fertilizer management is performed by a dry-wet alternate method, and the floating and moisture tobacco plants with robust plants, young and tender leaves and good feeding of the myzus persicae are cultivated; and in the follow-up process of myzus persicae propagation and aphidius gifuensis propagation, pinching bud-inhibiting treatment is performed, so that nutrient accumulation of middle and lower leaves is promoted, and the myzus persicae is propagated on leaves of various parts in a balanced manner.

Description

technical field [0001] The invention belongs to the technical field of the reproduction of Aphid vulgaris, and in particular relates to a high-efficiency bee propagation method for improving the formation equilibrium of Coronospora vulgaris. Background technique [0002] Aphids is an important parasitic natural enemy of Aphids and other aphids. It has been widely used in tobacco and other crops to control aphids. At this stage, floating tobacco seedlings, ground or potted tobacco plants are mainly used to breed bees, and they release stiff aphid seedlings. Or the bee-forming method is also difficult to meet the needs of popularization and application, and there is an urgent need for long-lasting cold storage, convenient transportation and release of stiff aphid products. [0003] The Chinese patent application with the application number of 200810187795.6 discloses a method for using tobacco plants to breed Myzus persicae, the method first transplants the tobacco plants grow...

AI Technical Summary

Problems solved by technology

[0005] Through the comparison test of these two bee breeding methods, it is found that the tobacco plant has a strong bearing capacity, a high bee reproduction rate per plant, and the bred aphids or aphid cocoons are big and strong, but water and fertilizer management is inconvenient, and the bee reproduction per unit area is low , and the breeding cycle is long

The floating tobacco seedling breeding method has weak carrying capacity of the tobacco seedlings, and the stiff aphids or aphid cocoons are relatively weak, but the management of water and fertilizer is convenient, the breeding cycle is short, and the number of bee breeding per unit area is high

In addition, these two methods also have the problem of irregular formation of aphids and inconsistent formation time of aphids on the upper, middle and lower leaves of the tobacco plant, which is inconvenient to collect and spread, especially for the collection of aphids. bigger

[0006] At present, when those skilled in the art are breeding aphids, they are all used in local tobacco fields and other farmlands, and are released in the form of aphid seedlings, aphid leaves or adult bees. The transportation efficiency is low and it is easy to cause A large number of wasps die, and the radiation radius generally rarely exceeds 50 kilometers; the production adopts the "self-use and self-support" and "release as you raise" methods, and does not pay attention to the balance and uniformity of the formation of dead aphids of the aphid.

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