Method for preventing and treating Jizhua disease of Huangguan pears

Abstract

The invention relates to the field of fruit tree prevention and treatment, in particular to a method for preventing and treating the Jizhua disease of Huangguan pears. The method includes the steps ofS1, starting to apply fertilizers before a pear tree sprouts, wherein the medium-trace-element fertilizer and the bacterial fertilizer are applied; S2, starting to spray pesticides when 70-80% of flowers fall, wherein the antibacterial pesticide and insecticide are sprayed together; S3, spraying dense bacterial ester; S4, smearing pear stems (fruit stems) with a pear drug; S5, spraying a bordeauxmixture (copper sulfate) before bagging; S6, starting to conduct bagging; S7, spraying the pesticides (the antibacterial pesticide and the insecticide) half a month later; S8, secondarily applying afertilizer 30 days before maturity; S9, spraying a medium trace number of elements about 20 days before maturity. By means of the method, the morbidity is reduced to the minimum, and the Jizhua disease is reduced; in an experiment in 2016, 6 boxes of pears have the Jizhua disease in 200 boxes, in an experiment in 2017, 3 boxes of pears have the Jizhua disease in 200 boxes, and in an experiment in2018, no Jizhua disease is found, so the morbidity is greatly reduced, economic benefits are improved, more gelatinous layers are formed, and the effect of preventing and treating the Jizhua disease is achieved.

Description

technical field [0001] The invention relates to the field of fruit tree prevention and control, in particular to a method for preventing and treating chicken claw disease of the crown pear. Background technique [0002] The disease occurs near the ripening stage of the fruit. Affected by the weather and climate, it forms punctate necrosis of the pericarp. In the early stage of the disease, light brown crescent-shaped or punctate textures appear near the lenticels. With the development of symptoms, the lesions expand slightly and the color deepens. The spots are slightly sunken, and multiple lesions occur simultaneously in different parts of the fruit, forming irregularly shaped and irregularly distributed dark-brown lesions or lesions or disease spots on the surface of the pear fruit. The appearance on the surface is similar to the traces of chickens scratching and stepping on it. Fruit farmers call it "chicken claw disease" or "chicken claw streak disease". If multiple lesi...

AI Technical Summary

Problems solved by technology

[0004] In the existing prevention and control methods, there is no specific pesticide for the treatment of the chicken claw d