Control of pests: emphasis on the prevention and control of pests such as cotton bollworm and fleas, especially the prevention and control of sudden pests such as Brassica napus, Spodoptera litura, Bemisia tabaci and other pests; attention to the prevention and control of late blind stink bugs, prevent pests sucking peaches harm. Rational use of drugs: When preparing pesticides, the standards should be strictly controlled, and the concentration of pesticides cannot be arbitrarily increased when the pesticides are compounded or mixed. Spraying pesticides should be uniform. No high-concentration liquids can be sprayed at high temperatures at noon. Appropriately applied top dressing fertilizer: Before and after August 5, the land with poor fertility, cotton fields with premature aging, and flower and bell fertilizers were applied prematurely and in small quantities; urea was applied at a rate of 5-8 kg/mu; no potassium fertilizer was applied. The hybrid insect-resistant cotton fields are sprayed with potassium-rich foliar fertilizers in the late growth stage to prevent red stem blight and premature aging.
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Below image as a reference:
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Preventing young age cracking of cotton
In recent years, cotton in some cotton fields appeared young cracking. The possible causes were cotton worms, larvae of cabbage beetles, and larvae of Spodoptera litura, such as chewing mouthpart pests and pupa, whiteflies, and blind stink bugs. Pest harm, frequent and uneven spraying of high-concentration pesticides, premature aging and red leaf blight hazards, mechanical damage. A small amount of young bell cracking has little effect on the yield, but management should be strengthened to minimize this phenomenon.