Myzus persicae and myzus persicae braconid reproduction method of reproduced tobacco plants

Abstract

The invention discloses a myzus persicae and myzus persicae braconid reproduction method of reproduced tobacco plants. The method includes the steps of when first-time aphid and braconid reproduction is finished or field tobacco leaf harvest is finished, cutting off stems, over 20-25 cm above the ground, of the tobacco plants without diseases and insect pests, loosening and ridging the soil, applying fertilizers, making the tobacco plants grow for the second time, reserving one robust lateral bud in sprouted new buds to continue cultivation, and clearing away the rest of the lateral buds; when each reproduced tobacco plant has 7-9 new leaves, inoculating the lower middle part of each tobacco leaf with aphids, covering an insect proof net after aphid inoculation, and inoculating braconid after aphid reproduction. According to the method, no seedling culture and transplanting are needed, and a greenhouse or other infrastructures do not need to be constructed or occupied, so that the inoculating aphid or inoculating braconid tobacco plants used for flue-cured tobacco braconid reproduction can be directly cultivated to be the reproduced tobacco plants for second-time reproduction of inoculating aphids and inoculating braconids. Meanwhile, according to the method, reproduced tobacco plant braconid reproduction can be directly conducted in the field, the cover net is opened after braconid reproduction, and adult braconids are allowed to spread freely to increase the amount of the braconids in the field and improve the control effect on aphids in the field.

Description

technical field [0001] The invention belongs to the technical field of breeding aphids and aphids, in particular to a method for regenerating tobacco plants to reproduce aphids and aphids. Background technique [0002] The technology of controlling aphids by using Aphids aphids has been relatively mature in the application of flue-cured tobacco, with remarkable economic and ecological benefits, and has been widely applied in flue-cured tobacco in Yunnan Province. Because Aphids aphids can not only parasitize peach aphids, but also parasitize radish aphids Lipaph is erysimi, wheat long tube aphids Macrosiphum avenae, wheat aphids Schizaphis graminum and other aphids. In recent years, tobacco companies in various cities in Yunnan Province have joined forces with the agricultural departments to try to promote the application of Aphids persicae in agriculture and have achieved certain results. However, there are also some problems in the bee breeding work. For example, flue-cur...

AI Technical Summary

Problems solved by technology

However, there are also some problems in the work of bee breeding, such as the time overlap between flue-cured tobacco bee breeding and agricultural bee breeding, and conflicts in the use of facilities. In addition, because the area of ​​large agricultural crops is much larger than the area of ​​flue-cured tobacco planting, the original matching flue-cured tobacco The facilities cannot meet the needs of large agricultural crops, and the original technical facilities occupy a large amount of facilities, complicated management, high cost and low agricultural supporting funds, etc.

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