Method of controlling aphids by intercropping vegetables among tobacco plants to breed Aphidius gifuensis Ashmead

Abstract

A method of controlling aphids by intercropping vegetables among tobacco plants to breed Aphidius gifuensis Ashmead is characterized in that during transplanting of tobacco seedlings, 20 to 40 aphid-friendly cruciferous vegetable seedlings are intercropped per mu among tobacco plants on a tobacco field; before the tobacco plants show aphid damage, parasitic aphids cultivated in an aphid culture room are inoculated to the cruciferous vegetable seedlings intercropped on the tobacco field. According to the method, aphids and wasps are naturally bred on the vegetable plants intercropped on the tobacco field, the Aphidius gifuensis Ashmead on the tobacco field can be aided in proliferating continuously in a long term to control aphid damage in tobacco, application of chemical pesticides in the tobacco planting process is greatly reduced, and tobacco safety is improved. The method has the advantages that tobacco aphids can be controlled effectively for a long term, the required scale of wasp cultivation is small, the cost is low, the Aphidius gifuensis Ashmead obtained has high resistance, aphids on the tobacco plants on the tobacco field can be controlled efficiently, manual collection and release of the Aphidius gifuensis Ashmead is not required, the process is simple, and labor consumption is lower.

Description

technical field [0001] The invention belongs to the technical field of biological control of agricultural and forestry pests, and in particular relates to a method for interplanting vegetables in tobacco to breed aphids aphids to control aphids. Background technique [0002] The tobacco aphid is one of the main pests in the production process of tobacco leaves. By sucking the nutrients of the tobacco plant, the nutrition of the plant is deteriorated, affecting the normal growth and development of the plant. It will affect the normal photosynthesis of plants and induce mildew. Aphids are the transmission medium of various viruses, spreading viruses, causing the epidemic of plant virus diseases, and seriously affecting the quality and yield of tobacco leaves. [0003] There are agricultural control, chemical control, physical control and natural enemy control methods to control aphids. For a long time, people mainly rely on the use of chemical insecticides for chemical control...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the biological control of aphids on tobacco plants by the use of Aphids persicae, in the prior art, the cost of constructing bee breeding facilities is high, and the collection and release of A. Low problem, a kind of interplanting vegetables in tobacco is provided and breeds the method for the control of aphids of aphids, the implementation steps of the method are: