With the gradual transition of early spring gas, various peach diseases and insect pests began to recover, breed and multiply. The early spring control of peach tree diseases and insect pests can effectively control the occurrence and spread of various diseases of peach trees and reduce the number of insect pests. Below we will look at a few key points of peach tree pest control technology.
- Before the germination of peach trees, spray 45% of the crystal sulphur mixture 50 times to eliminate the insects such as winter locusts, mulberry scale insects, and the initial infection sources of brown rot, perforation and scab.
Second, after the buds of peach trees to before flowering, spray l5% lingzhi emulsifiable concentrate l000-2000 times liquid, or l0% imidacloprid 3000 times liquid to control peach aphid, 50% anti-èšœå¨3000 times liquid good effect, its insecticidal The effect is related to the temperature. When the temperature is above 20 degrees Celsius, the insecticidal effect is remarkable, and it is safe for natural enemies such as ladybugs and grasshoppers.
3. Before the opening of the peach blossoms (when the flower buds are reddish), spray 2 times 3 to 3 Â° be stone sulfur mixture or l: l: l00 Bordeaux mixture, or 45% crystal stone sulfur mixture 30 times solution, or 70% mancozeb Wettable powder 500 times solution, or 70% thiophanate-methyl WP 10,000 times solution, prevention and treatment of leaf shrinkage; spray cloth 50% chlorhexidine l000 times solution or 50% keering l000 times solution to prevent gum disease At the initial flowering stage, 65% of the sensitized zinc l000 times solution or 70% of the methyl thiophanate l000 times solution is used to prevent the peach brown rot.
4. After the peach blossoms are opened, spray 25% of the urea-free urea l500 times to prevent and control the leaf miner and the leaf-rolling moth; spray the l0% imidacloprid 2000 times solution to control the aphids. Artificially catching the chafer during the flowering period. The tree is shaken in the morning, and the worms are buried in the soil after they fall.
5. In the spring, the overwintering larvae of the pink-necked beetle begin to forage, and a large amount of reddish brown worm feces and debris are discharged to the pupil. The special phosphatine poisonous smear that kills the larvae of the beetle can be inserted into the wormhole.
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