If you want plums to be worm-free, spraying flowers is the key. What medicine do you need to spray?

Different insects on plums have different control methods. Faced with these bugs, we should take different measures to solve these problems. Let's talk about different insect control methods.

List:

1: Harm of aphids: The main harm of aphids is the damage to the tip of Li Shuxin. When the new shoots are seriously damaged, they are curly, and their growth will be bad, which will greatly affect photosynthesis, so that they will fall off, affect the yield of fruit trees and the formation of flower buds, and greatly weaken the tree potential. The general method is to combine pruning in early spring, cut off damaged branches and destroy them centrally. Spraying pesticides on trees: 50% dichlorvos emulsion 1% to 1.5%, 50% malathion 1%, 40% dimethoate emulsion 1% to 2%, 50% phoxim emulsion 2%, 50%.

2. Harm of red spider: The red spider that harms plum trees is mainly the adult and nymph of red spider of hawthorn, which suck the juice of leaves and buds, so that new buds can't continue to germinate. After the leaves were seriously damaged, the whole leaves turned brown and fell off. In July and August, most leaves fall off, sometimes causing secondary flowering. The severely damaged plum trees not only can't mature in that year, but also greatly affect the formation of flower buds in that year and the yield of plum trees in the next year. Solution: The solution is usually to keep the population base as low as possible. Spraying 5% anthracene oil emulsion and 3-5% sulfur mixture before germination of fruit trees. In addition, before the plum tree germinates in early spring, it can be combined with the prevention and control of other pests, completely scraping off the warped skin and coarse skin on the trunk and main branches, and centralized burning. At the peak of female overwintering, 1 generation eggs can be prevented and controlled, and 0 can be diluted with 30 degrees sulfur mixture. 8% solution or 20% dicofol alum wettable powder 0.6% ~ 1% solution, 40% omethoate emulsion 1.5% ~ 2% solution, 20% metoclopramide 2% solution, 20% dicofol or 50% deltamethrin/kloc. Various acaricides should be used in turn to prevent insects from developing drug resistance and improve the control effect of insects.