1. Use quick-acting pesticides, such as dichlorvos, extermination, fast-king, and cyanine EC. These pesticides have a strong poisoning effect and can kill pests within an hour or two after use. Use pesticides with strong systemic absorption. 4 to 5 hours after use, more than 80% of the active ingredients can be absorbed into the internal tissues by the crops. Even if it rains, pests and pathogens can still be killed. Adhesives are added to water and wettable pesticides. Poor adhesion of water solution and wettable powder pesticides. When formulating pesticides, add 100 to 150 grams of soybean powder or washing powder to 100 kg of liquid medicine as an adhesive to improve the effectiveness of pesticides.
2. Avoid spraying on stormy days and hot days. It should be applied at 8 to 10 am and after 5 pm. When the wind is heavy, the spraying should be stopped. Otherwise, the application will be uneven and it will easily cause injury. Dilute pesticides with clear water. Well water generally contains more minerals, and there are more impurities in the sewage. Therefore, it is best to dilute pesticides with clear river water.
3, according to the toxicity of pesticides to determine the safe interval of application. The residual period of general high-toxic pesticides is more than one month, and the residual period of high-efficiency and low-toxic pesticides is 7-10 days. Regardless of grain, oil, melon crops and fruit trees, the use of pesticides should be stopped in accordance with the regulations before harvest to prevent the occurrence of human and animal poisoning.
4, do not wear chemical fiber clothing spraying pesticides. It is advisable to spray pesticides in summer and wear cotton fabrics. Wear protective clothing such as masks and gloves.
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