2016 spring fruit tree locust control strategy
In the spring season, all kinds of fruit trees have also entered the germination period. Of course, fruit trees and insect pests will not be idle. In fact, the majority of fruit farmers have headaches, which belong to fruit tree aphids. From March to April, the fruit tree aphids breed. So what are the methods to control fruit and vegetable mites? Let's take a look at it with Xiaobian.
Agricultural control:
1. Remove litter in winter, scrape out rough old bark, cut off the damaged branches, and burn them intensively.
2. There are many natural enemies of mites, such as ladybugs, scorpion flies, grasshoppers, parasitic wasps, etc., which have a strong inhibitory effect on aphids. Therefore, it is necessary to spray a broad spectrum of pesticides as little as possible and avoid spraying during periods of natural enemies to protect natural enemies and use natural enemies to eliminate mites.
Chemical control:
1. Drying of the drug: use 1 part of 40% omethoate, add 1 part of multi-functional plant synergist, add 2 parts of water, mix and mix into liquid medicine. Use a brush to apply a 10 cm wide medicine ring on the trunk. If the bark is rough, the old skin can be scraped off and then applied. After coating, wrap it in newspaper or plastic film.
2. Trunk injection: use the iron cone on the trunk to puncture the hole from top to bottom, deep into the xylem, then inject 40% dimethoate with a No. 8 syringe, close the orifice, and more than 95% after 2 to 3 days. The mites kill.
3, the occurrence and control of aphids: early spring in the bud sprouting, wintering egg hatching period is a key period to control peach aphid, at this time with pyrethroid pesticides or nitrile heterocyclic insecticide - imidacloprid (3000 times) 3% acetamiprid 2500-3000 times spray a "dry branch", which can basically control the hazard. During the hazard period, the spray should be sprayed before the number of insects does not occur. 10% imidacloprid 3000-4000 times, or 48% lesbian cream 2000 times, or 35% endosulfan 1500 times, or 50% sputum fog 3000. ~4000 times liquid can achieve the effect of controlling fruit tree aphids.
The above is the prevention and control method of fruit tree aphids. To learn more about pesticides, please pay attention to the Chinese pesticide network.
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