Summer and autumn fruit tree pests

The season of summer and autumn is the most prosperous season for fruit trees, and it is also the season for all kinds of pests. For the control of fruit tree pests, spraying methods are generally used. Although this method has a certain control effect, but its drawbacks are also many, a large number of liquid droplets diffuse in the air, the environment is contaminated, easily lead to human and animal poisoning. The prevention and control methods of three kinds of summer and autumn fruit trees with scientific practicality and effective control are introduced as follows: 1. Trunk application method to control locusts, golden flower bugs, red spiders, and scale insects on pine trees such as hawthorn and cherries. . Omethoate pesticides can be applied to tree trunks 2 meters above the ground. After the liquid is absorbed by the trees, it can be transported to all parts of the tree. Once the pests eat, they will poison and die. The control effect can reach more than 85%. If the green or blue plastic film is wrapped around the applicator, the effect is better. Second, the injection of pesticides some borers pests, such as Tianniu, willow baby mosquitoes, pine shoots, bamboo weevil, etc., damage the trunk, branches, tree skin. Drilling pests should be treated differently. If there are wormholes on the surface of the tree, syringes can be used to inject the drug into the wormholes. For example, when fresh swarf is found outside the wormhole, it indicates that there are larvae such as calf larvae deep in the wormhole. At this time, 5 times liquid of 40% dimethoate (1 part of liquid to 5 parts of water) can be injected into the wormhole 1~ 2 ml, or injection of 5 ml of 5 % methamidophos EC in each well, 1 ml of 2 to 3 times liquid, then sealed with sludge to prevent the liquid from evaporating outwards. The efficiency of prevention is above 95%. If you do not see wormholes on the surface of the trees, you can only see the large "tumors" that appear on the trunks and big branches. You can drill 2 to 3 holes in the "tumor" first, and then use the omethoate solution to inject the medicine into the wormholes. 1 ml, 100% efficiency. There are two methods for embedding the roots in the root embedding method: First, direct embedding. First open the ring groove at a distance of 0.5 to 1.5 meters, then bury 3% of carbofuran in the groove, bury 1 to 3 years old trees for 100 to 150 grams, and bury 250 to 300 grams of trees for 4 to 6 years; 7 years The above-mentioned trees are buried in about 500 grams, which can control the leaf pests of the trees, and in particular, they have special effects on the control of aphid pests. The efficacy period of the trees can last for 1 to 2 months. According to the investigation after buried medicine, the effect of controlling pine borer can reach 95% and the control of aphids can reach 100%. The second is buried bottle. Put 40% omethoate 5 times into the bottle first, then excavate the root of the root of the trunk, expose the root of the tree, choose no more than the thick root of the cigarette, cut the root tip, and then insert the original root. Into the medicine bottle, its root end should be inserted into the bottom of the bottle, and finally the bottle mouth is tied with a plastic film, and the soil is buried. By sucking medicine through the roots, the liquid medicine will soon be transported with the catheter to various parts of the tree to achieve pest control.

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