Long storage method of overwintering generation Harmonia axyridis

Abstract

The invention relates to a long-term storage method for overwintering generation harmonia axyridis, which comprises the following steps: trapped harmonia axyridis is loaded into a container with a hole, and the container is placed in a cellar for storage overwintering. The method is adopted to ensure that the storage period of the harmonia axyridis reaches more than eight months, and the overwintering survival rate of harmonia axyridis for egg production can reach 78 percent in the middle of May of the second year. The breakthrough of the key storage technology lays a foundation for the direct mass application of adult harmonia axyridis and the extension of the breeding period of the harmonia axyridis.

Description

Technical field: [0001] The invention relates to the technical field of agriculture, and belongs to a technology for preventing and controlling diseases and insect pests, and particularly relates to a long-term storage method of overwintering Harmonia axyridis. Background technique: [0002] Aphids are a kind of pests that are common and harmful to many plants. Although pesticides are effective to prevent and control aphids, they can cause irreversible damage to plants and the environment. Ladybugs are the most effective natural enemies of aphids. Studies at home and abroad have shown that the use of ladybirds Controlling aphids by insects is an excellent biological control chain, but there are still many defects in the technology of ladybird breeding and release. Especially the storage and collection methods of ladybirds in the overwintering generation are currently in a blank at home and abroad. There is no breakthrough, which directly affects the breeding effect of ladybirds. ...

AI Technical Summary

Problems solved by technology

[0002] Aphids are a kind of pests that commonly occur on a variety of plants and are very harmful. Although pesticides are effective in controlling aphids, they will cause irreversible damage to plants and the environment. Ladybugs are the most effective natural enemies of aphids. Insects to control aphids is an excellent biological control chain, but there are still many defects in the technology of ladybug breeding and release. Especially the storage and collection methods of overwintering ladybugs are currently blank at home and abroad. There is no breakthrough, which directly affects the breeding effect of ladybugs

[0003] The seed insects used for ladybug breeding are the overwintering ladybugs collected from plants in spring. The defect is that the overwintering ladybugs have already laid eggs when there are aphids on the plants, and it is impossible to collect no eggs at all. For the overwintering generation of ladybugs, the amount of eggs collected in this way is very low, and the storage method of the overwintering generation of ladybugs is still blank