Prevention and treatment method for citrus huanglongbing

Abstract

The invention discloses a prevention and treatment method for citrus huanglongbing. The method comprises the following steps: cleaning an orchard in winter; spraying a chemical drug normally used for killing citrus psylla; and spraying a chemical drug capable of inhibiting bud germination before germination of summer shoots of citrus every year. According to the method, directed at the living habit of the huanglongbing propagating source--citrus psylla, the chemical drug capable of inhibiting bud germination is sprayed so as to effectively cut off places where citrus psylla grows, lays eggs and propagates, so the amount of citrus psylla population is drastically decreased, thereby achieving the purposes of prevention and treatment of huanglongbing; moreover, the disadvantages of fruit drop and damage to the tree shape of citrus caused by excess consumption of tree nutrients by considerable production of summer shoots are overcome. Compared with conventional spraying manners for chemical drugs used for killing citrus psylla, the method provided by the invention has obvious prevention and treatment effects.

Description

technical field [0001] The invention relates to a method for preventing and treating citrus huanglongbing, in particular to using chemical drugs such as maleic hydrazide and flumetralin to inhibit bud germination to inhibit the germination of citrus summer shoots, thereby controlling citrus huanglongbing Methods. Background technique [0002] Citrus huanglongbing is a systemic disease, commonly known as the "cancer" of citrus. There is no cure for it, and the only option is to cut down the tree after infection. Transmitted by the citrus psyllid, caused by Bacteroides phloem ( Candidatus Liberibacteria asiaticus ) caused devastating diseases of citrus. In recent years, many domestic and foreign scholars have conducted research on Huanglongbing, and achieved some gratifying results. However, due to the fact that the pathogen of Huanglongbing cannot be cultivated artificially, there is still no research on the pathology of Huanglongbing, disease-resistant agents and screening...

AI Technical Summary

Problems solved by technology

However, the current biopesticides have a short duration of action, basically no more than 6 days. Frequent spraying not only increases the burden on fruit farmers, but also increases labor costs. obvious