Method for killing nymphs of Diaphorina citri based on handheld microwave device

Abstract

The invention discloses a method for killing nymphs of Diaphorina citri based on a handheld microwave device and relates to the technical field of microwave application. Positive rate of Diaphorina citri herein is divided into three levels of <40%, > / =40%-<80%, and > / =80%; different microwave killing techniques are adopted according to different positive rates of Diaphorina citri; when nymphs of Diaphorina citri are killed 2-4 times at intervals by orchard workers through the handheld microwave device, microwave powder is increased gradually from the lowest level of 300-400 W to the highest level of 900-1000 W, and microwave frequency is decreased gradually from the highest level of 2.4-2.5 GHz to 890-940 MHz; nymphs of Diaphorina citri at the different parts of citrus can be killed through microwave thermal effect and nonthermal effect by microwave emissions of the handheld microwave device having different intensities and penetrating depths. The method allows the quantity of populations of Diaphorina citri in an orchard to be reduced greatly, allows the ability of Diaphorina citri to propagate Citrus greening disease to be limited, helps effectively prevent the propagation and spread of Citrus greening disease, has no need for using chemical reagents, and is low in cost, ecological, environmentally friendly, and efficient.

Description

technical field [0001] The invention belongs to the technical field of microwave applications, and in particular relates to a method for killing citrus psyllid nymphs based on a hand-held microwave device. Background technique [0002] Citrus Huanglongbing (Huanglongbing) is currently the number one devastating disease of citrus production in the world, which is caused by Phloem bacteria parasitic in the phloem of plants. Due to the serious harm and high fatality rate, and the lack of effective prevention and control methods so far, Huanglongbing is called the "cancer" of citrus. [0003] The citrus psyllid is the only natural carrier of Huanglongbing in the field. In the whole life cycle of the citrus psyllid, there are three stages: eggs, nymphs and adults. Effectively controlling the population of citrus psyllid is an effective way to control citrus greening disease. The traditional control methods of citrus psyllid mainly include physical trapping and chemical killing....

AI Technical Summary

Problems solved by technology

Chinese patent CN201810639091 (application number) discloses the application of a special light source in trapping citrus psyllids and the citrus psyllid trap. The wavelength of the special light source is 409.9nm~511.6nm. Greatly improve the effect of trapping citrus psyllids with light; at the same time, the wavelength of the special light source is single, the pertinence is strong, the specificity of trapping citrus psyllids is strong, and the damage to other insects, especially beneficial insects, is small

Microwave insecticide has been well applied in the control of some pests, but there is no microwave killing method for citrus psyllids

[0005] Citrus psyllid adults have the characteristics of bouncing and short-distance flight. When killing psyllid adults in orchards, the psyllids will escape everywhere and the killing effect is not good.