Rescue fruit damage technology

The damage to plants from pesticides is divided into acute and chronic. Acute injury is manifested within a few hours to several days after spraying, such as spots, yellowing, chlorosis, withering, leaf curling, deciduous fruiting, and tufting. Chronic drug damage will manifest itself after a long period of time, such as weakened photosynthesis, delayed flower bud formation and fruit maturation, small size, deformity, and deterioration of flavor and color. Once fruit trees are found to have been sterilized, the following measures should be taken immediately to rescue them.
1, spray potassium permanganate. Potassium permanganate is a strong oxidant and has an oxidative decomposition effect on many chemical substances. Spray 6000 times potassium permanganate solution, can effectively alleviate the injury.
2, rinse with water. Most chemical agents are not resistant to water erosion. If the application concentration is too high to cause phytotoxicity, sprayers should be used to fill the clean water and wash the leaves of the fruit tree repeatedly to wash off the residual agent on the surface of the leaves.
3, suspend the use of similar drugs. Before the phytotoxicity is completely eliminated, reduce the use of pesticides as much as possible, especially if the pesticides of the same type are to be stopped, so as not to aggravate the phytotoxicity.
4, followed by fertilizer water. After the occurrence of phytotoxicity, fruit trees should be supplemented with water-saving fertilizers and cultivating loose soil. At the same time, 0.3-0.5% urea and 0.2-0.3% potassium dihydrogen phosphate should be sprayed on the leaves to improve the nutritional status of fruit trees and enhance the root absorption capacity. The operation should be conducted before 10 a.m. and after 4 p.m.

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