MySheen

Kang's pink scale in pear orchard

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, The main results are as follows: (1) the occurrence regularity of Kang's pink scale belongs to Homoptera, Coccidae. Also known as pear pink scale, plum powder scale, mulberry powder scale. Generally, there are three generations a year, overwintering with eggs and nymphs in rough bark cracks, bagged diseases and pests scattered in the orchard, weeds around the rhizosphere, soil clods, fallen leaves and other hidden places. Use adults and nymphs to suck the juice of buds, shoots and fruits. Before bagging, it is mainly harmful to buds and shoots, causing leaves to twist, swell, wrinkle and wither. After bagging, drill into the bag to harm the fruit, live in groups in the calyx depression and stem depression, secrete white wax powder, pollute the fruit, and absorb.

The main results are as follows: (1) the occurrence regularity of Kang's pink scale belongs to Homoptera, Coccidae. Also known as pear pink scale, plum powder scale, mulberry powder scale. Generally, there are three generations a year, overwintering with eggs and nymphs in rough bark cracks, bagged diseases and pests scattered in the orchard, weeds around the rhizosphere, soil clods, fallen leaves and other hidden places. Use adults and nymphs to suck the juice of buds, shoots and fruits. Before bagging, it is mainly harmful to buds and shoots, causing leaves to twist, swell, wrinkle and wither. After bagging, get into the bag to harm the fruit, live in groups in the calyx depression and stem depression, secrete white wax powder, pollute the fruit, absorb juice, and make the fruit lose its commercial value and edible value. (2) ① garden cleaning: carefully scrape off the rough old warped skin and clean up the old paper bags, diseases, insect pests and fruits, residual leaves and dry saw. Before ② germination: spray Baume 5 degrees stone sulfur mixture to eliminate overwintering eggs and insects. Before ③ bagging (early May): it was the peak hatching period of the first generation of eggs, and the larvae gathered together and had not spread. Spray 1500 times 40% speed killing EC. ④ should pay attention to the spray carefully and evenly when spraying, especially the middle and lower part of the crown and the inner chamber.

 
0