Method for utilizing microwaves to kill diaphorina citri on basis of ground self-propelled wheel machines

Abstract

The invention discloses a method for utilizing microwaves to kill diaphorina citri on the basis of ground self-propelled wheel machines and relates to the technical field of microwave application. According to the method, the positive rate of diaphorina citri is divided into three levels, wherein the first level is lower than 40%, the second level is higher than or equal to 40% and lower than 80%, and the third level is higher than or equal to 80%; according to different positive rates of diaphorina citri, different microwave killing processes are adopted; when the 2-4 self-propelled wheel machines are utilized to kill diaphorina citri at intervals, the microwave power is gradually increased from the lowest level 500-800 W to the highest level 1,800-2,000 W, the microwave frequency is gradually reduced from the highest level 2.4-2.5 GHz to 890-940 MHz, and diaphorina citri at various parts of citrus are killed through microwave treatment, different in intensity and penetration depth, of the self-propelled wheel machines, a microwave thermal effect and a non-thermal effect. The method has an obvious killing effect on diaphorina citri, the positive rate of diaphorina citri after microwave treatment is reduced by 90% or above at most, the population number of diaphorina citri in an orchard is greatly reduced, the ability of diaphorina citri to transmit Huanglongbing is limited, and transmission and spread of Huanglongbing are effectively prevented. In addition, there is no need to use chemical agents, and the method is low in cost, ecological, environmentally friendly and efficient for killing diaphorina citri.

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 by using microwaves based on a ground self-propelled wheeled machine. 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...

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.