What about the drug damage to grape leaves?
Grape is a common fruit in life, not only variety, but also good taste, very popular with people, many areas are planted, but during planting, there will be various phytotoxicity, then grape leaf phytotoxicity how to do?
1. Alleviate phytotoxicity
Phytotoxicity of grape mainly manifested in leaves, sometimes fruit and tender shoots will also occur, specific phytotoxicity symptoms because of different varieties and obvious differences. After the occurrence of phytotoxicity, clean water should be sprayed as soon as possible to reduce the occurrence of phytotoxicity by reducing the concentration of drugs. If it is pesticides, herbicides, etc. sprayed on the ground, it should be washed in time to wash the soil pesticide residues in the soil. In this way, the grape phytotoxicity can be greatly alleviated. Or spray propionyl Yun Su lactone aqua or sea spirit, also can alleviate phytotoxicity.
2. Rational use of drugs
When using pesticides, try to choose safe pesticides. Be sure to apply the concentration according to the instructions. Do not increase the concentration at will. Avoid using drugs when the temperature is too high. Do not use drugs immediately after dew and rain. If it is wettable powder pesticide must be diluted evenly, in combination with foliar fertilizer when used together to fully dissolve foliar fertilizer and then add to the solution, and fully stir evenly before spraying.
3. Strengthen management
Grape planting should strengthen management, cultivate strong trees, in order to improve the resistance of grapes, after the mitigation of phytotoxicity to strengthen fertilizer and water, promote plant recovery as soon as possible. For small areas of phytotoxicity, the affected leaves or fruits can be removed, so as not to give the bacteria an opportunity to take advantage of, if it is a large area of phytotoxicity, in order to alleviate phytotoxicity at the same time to do a good job of pest control measures. At this time, because the grape after the occurrence of phytotoxicity, the plant is weak, the resistance to disease is weak, then the occurrence of diseases and insect pests, easily lead to plant death.
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