Method for controlling diaphorina citri and citrus greening diseases in citrus orchard

Abstract

The invention discloses a method for controlling diaphorina citri and citrus greening diseases in a citrus orchard. The method includes: building windbreaks: windbreaks with at least 2-3 layers of trees are planted around the citrus orchard; diaphorina citri on diaphorina citri hosts within 2000m around the citrus orchard is controlled and killed, medicament which is used is conventional insecticide for killing the diaphorina citri, and the insecticide is conventionally sprayed at fixed period in the last ten-day period of February, the first ten-day period of May, the last ten-day period of August and the last ten-day period of November every year to kill the diaphorina citri; and the diaphorina citri in the citrus orchard is controlled and killed, the periods of diaphorina citri control of the citrus orchard are germination periods of shoots, the insecticide is sprayed at each shoot period, key control periods are the early summer shoot period and the early autumn shoot period, in the usual, the diaphorina citri is immediately controlled through insecticide spraying if found, the medicament which is used is the conventional insecticide for killing the diaphorina citri, and the insecticide is conventionally sprayed to kill the diaphorina citri. Through observation in about 5 years, a result shows that the effect of diaphorina citri control in the citrus orchard is stable, and the incidence of citrus greening diseases is low and can be controlled under 0.1%..

Description

Technical field: [0001] The invention belongs to the field of pest control, and in particular relates to a method for controlling citrus psyllids and Huanglongbing in citrus orchards. Background technique: [0002] my country is a big citrus producing country in the world. The citrus industry is the pillar industry of our country's agriculture. It occupies an extremely important position in the agricultural economy and plays an extremely important role in increasing farmers' income, increasing social employment and building a new socialist countryside. Citrus pests and diseases are major obstacles to the development of the citrus industry, the most serious of which is citrus huanglongbing, known as the "cancer" of citrus. With the rapid development of citrus production, the occurrence and damage of citrus huanglongbing are becoming more and more serious. The disease is a very harmful infectious disease. Its epidemic duration is long, the incidence range is wide, and the inc...

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Problems solved by technology

(2) There is no control technology directly targeting the pathogenic bacteria of Huanglongbing

Analyzing the reasons, we believe that, first of all, due to the early reports of this type of research, the injection technology was relatively backward at that time, so the operability was not strong; secondly, there were fewer types of antibiotics, and the drug effect was poor, so it was difficult to obtain satisfactory control in the field. effect, so it cannot be widely promoted and applied

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