The lychee ejaculation was severe, the mature period was harmed, and the pipe was filled with insect dung, which affected the growth of the new shoots and flowering the following year. It is recommended that fruit farmers discover the timely medication in time to avoid affecting the fruits of lychee.
The survey found that 10 generations occurred in the southern part of Fujian in the southern part of Fujian. Flower ears and fruits are mainly fruit, from early August to early September to harm longan fruits and tender shoots. From mid-September to early November, the new shoots of litchi and longan.
The method of preventing and control of lychee pitch
1. Pharmacy prevention and control: Generally spraying medicines 3 times, the flowers of litchi and longan 15-20 days before maturity and the autumn shoots, the leaf period, the medicine was incubated to the period during the first period of the larvae. It can also be cured by controlling lychee lychee, lychee sloping moth, longan -eyemore moth, and longan corners of cheeks.
2, May-July July should be cleaned in time, fallen leaves, fruits, and concentrated burns to eliminate the source of insects.
3. Pharmacy can be selected from 10%efficiently destroying Bai Ke 3000 times liquid, 4.5%green dan emulsion 1000 times liquid, 2.5%kung fu 2500 times liquid, 40.8%Le Subbon 1000 times liquid, 2.5 2.5 %Enemy kills 2500 times liquid, 20%sweeping 2000 times+80%dichlorvos 600 times, 5%kick 1500 times, etc. In order to avoid pest properties, the above medicines should be used alternately.
4. Combined with control shooting. Winter shoots are an important wintering place for the worm. The autumn shoots should be cultivated, the winter shoots are trimmed, and the spring shoots with more insect mouth should be cut off.