The law of occurrence and prevention

It is a common pest that harms apples, pears, peaches, apricots, plums, grapes, and other fruit trees. Because it is more difficult to control, there is a tendency to occur in large areas in individual areas. The law of occurrence and prevention and control measures of Kinjisuke are introduced as follows.

First, the harm symptoms and the law of occurrence (a) harm the symptoms. Kusuke Kinosuke mainly uses nymphs and female adults to suck sap on branches or leaves, causing tree growth to grow weak or leaves dead. Once this worm occurs, it spreads quickly and close to the branches and trunks. If the control is not timely, it will affect the quality of the fruit, resulting in reduced production. (b) The law of occurrence. Ball Kinsuke was born in 1 year in our province. The female adults of the fertilized family lived through the winter, and they began their activities in late April of the following year. In early May, the male nymphs begin to secrete wax, form new shells and become adult. The female adults began spawning in their own shells in late May and hatched as nymphs in early June. They crawled out of the shell and crawled around. They scattered on the back of the shoots and leaves to suck juice and harm young leaves and shoots. In late July, the nymphs began to emerge as female adults. After the male and female adult copulation in early August, the male adults gradually died. Fertilized female adults were concentrated in the branches and branches and the cracks in the branches.

Second, the prevention and control measures (A) before April 30th by mechanical or artificial brush method to wipe off the body, cut off the insect shoots. The female adults were sprayed with 5% diesel emulsion or 5% mechanical oil emulsion. (b) Brushing the trunk body with 0.3% to 0.5% physiological saline during the growth period of fruit trees. (c) In the middle and early May, the 800-fold solution was used to inflict 500 times liquid Lipei to spray. (e) In the middle and early July, the nymphs were sprayed with 1000-fold phoxim at the incubating period, which has a significant effect.

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