The invention discloses a rapid high-density breeding method for aphidius gifuensis ashmead mummified aphids. The method includes the following steps: step (1) oppositely combining two gauze frames into a breeding box; step (2) fixing tobacco leaves to gauze of the gauze frames; step (3) collecting leaves with a large number of myzus persicae from aphid-breeding tobacco plants or seedlings, transferring the myzus persicae to the back sides of the tobacco leaves in the gauze frames, and timely and oppositely combining the two gauze frames after transfer to spread and fasten the myzus persicae;step (4), introducing breeding bees within 1-5 hours after transfer, and timely and oppositely combining the two gauze frames after bee introduction to allow the bees to parasitize and form the mummified aphids in a growth chamber; and step (5) 8-10 days after bee introduction, forming a large quantity of the mummified aphids. The rapid high-density breeding method has the advantages that a methodfor high-density aphid transfer and forced bee introduction through fresh tobacco leaves is applied in the tailor-made gauze frames, the mummified aphids, which grow uniformly in high density, are rapidly formed in a short time, and a foundation is laid for industrialized production of products of the aphidius gifuensis ashmead mummified aphids.

Rapid high-density breeding method for aphidius gifuensis ashmead mummified aphids

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.

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

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