Pear psylla prevention method

Abstract

The invention discloses a pear psylla prevention method. The method includes the following steps: firstly, before overwintering, thoroughly removing remaining branches, falling leaves and weeds in a surrounding a pear orchard, and gathering and deeply burying the branches, leaves and weeds; secondly, covering a ground with pear tree canopy coverage with three to four membranes, scraping and removing crude warped bark and decayed and dried disease spots on branches and trunks of pear trees, and gathering and burying the removed matters; thirdly, ploughing in the pear orchard in winter, digging out pear psylla in soil, and conducting irrigation in the pear orchard when the temperature reaches zero; fourthly, before pear budding to blooming, selecting 25% 7000-fold to 8000-fold Actara and spraying the Actara to the pear trees; and fifthly, forbidding the use of broad spectrum pesticides, and utilizing natural enemies of pear psylla such as parasitic wasps to conduct biological prevention and control on pear psylla. According to the method, the cardinal number of overwintering pear psylla is greatly reduced, and the harm of pear psylla to the pear trees is greatly reduced through cooperation of medical control.

Description

technical field [0001] The invention relates to a method for preventing and treating pear psyllids, which is applied in the technical field of pear tree disease prevention. Background technique [0002] Due to the large population base of pear psyllids, it has great harm to pear trees. Its damage is divided into direct damage and indirect damage. , the tree vigor is weakened, and at the same time, the secretions of pear psyllids are infected by molds and produce toxins. Under the joint action of molds and their toxins, the epidermis tissue is first destroyed, and then the mesophyll cell tissue is damaged, causing the tissue to become pathogenic and expand, and a large amount of water loss Then dry up and die. Therefore, the prevention and control of pear psyllid has a significant effect on improving the economic benefits of fruit farmers. At present, most of the control measures for pear psyllid in the market are spraying drugs in the early stage of the disease. However, du...

AI Technical Summary

Problems solved by technology

Therefore, the prevention and control of pear psyllid has a significant effect on improving the economic benefits of fruit farmers. At present, most of the control measures for pear psyllid in the market are spraying drugs in the early stage of the disease. However, due to the large breeding base and high concealment of pear psyllid, Therefore, the effect is not large, which directly affects the economic benefits of farmers