How to deal with cotton Fuxi difficult

Recently, some farmers have complained that Fuxi is incurable. In fact, in order to cure Fuxi, it is necessary to grasp the following points well: First, do a good job of pest monitoring and reporting, strengthen field investigations, master the occurrence of Fuxi, and use drugs during the critical period of prevention and treatment. When a small amount of shiny small honeypots appear on the lower leaves of the cotton plants, the cotton cocoons must be prepared to prevent and cure them when they move upwards. Second, when the spot rate of cotton plants in the middle of the cotton field reaches 3% to 5%, the spraying is performed immediately before the occurrence of damage in the entire field. The third is to combine it with other preventive measures. The insects of Fuxi are mostly concentrated on the old leaves and tender pods at the bottom of the cotton plant. The old leaves, cotton hearts, and twigs that have been plucked should be taken out of the field for destruction, reducing the source of insects, effectively delaying and alleviating hazards. You can also play the natural control role of natural enemies in the field. The occurrence of Fuxia is a time of high temperature and high humidity. It is also the period of large breeding of natural enemies in the field. We must use grasshoppers, ladybugs and other beneficial insects to control the damage of Fuxi. The fourth is choosing pesticides. At the initial stage of the occurrence of Fuxi, before the rain, 15% iron can be used per mu 250-350 grams, mix well with the fine soil, and apply it to the soil under 10 cm to control. The peak period of the occurrence of Fuxi can be used 5% acetamiprid 1000 times + 48% Lebensmitten 1000 times, or 20% imidacloprid 1000 times + 48% Lethburn 1500 times, mixing 1:1 ratio spray , Or use only 48% of 1500 times, or 20% of the 1500 times spray solution of Methomyl spray control, spraying spray to play strict, so that one anti-a buckle, all four through. The spraying time is preferably before 9:00 in the morning and after 5:00 in the afternoon.

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