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Pest prevention and control go into misunderstanding
At the moment of a critical period of crop pest control, the joint prevention and control of crops and pests in all regions set off a climax. However, in the survey, the author found that some peasant households did not understand ideological ideas correctly, and prevention and control had entered misunderstandings and urgently needed attention. Misunderstanding 1: The more drugs you use, the more insurance you have. Some rural households have a small 5 days prevention, 10 days a big rule, disease-free and insecticide fight drugs, the result is labor spent, medicinal, and the pests are still serious, in fact, playing "insurance drugs" is not insurance, one of the reasons is A large number of natural enemies are killed, and most natural enemies of pests (eg, parasitoids, spiders, frogs, etc.) are less resistant to pesticides than pests, and the mortality rate after application is higher than that of pests, and the large number of natural enemies dies, making it easier to cause diseases and insects. Hazard; Second, it is easy to increase the resistance of pests and diseases, and frequent use of drugs will easily lead to increasingly stronger resistance to insect pests. Even if the dosage and the number of times are increased, it will be difficult to achieve results. Thirdly, the number of medications is relatively large, which in turn increases costs. Myth 2: The higher the drug concentration, the better. More often than not, it is believed that if the concentration is higher, the control effect will be better. In actual fact, the concentration is too high, and it is easy to produce phytotoxicity, which is not worth the candle. Should be used strictly in accordance with the standard. Misunderstanding 3: The more expensive it is, the better. Recently, there have been some strange phenomena in the pesticide market. The product name is strange and its name is too numerous. It is somewhat confusing. People tend to produce pesticides as new and better, more expensive and better, and “imports†are better than domestic ones. Such mistakes are recognized, and its practical drugs emphasize the right medicine, as long as the disease is accurate, the pesticides are selected in the right direction, the concentration is used properly, the use time is well controlled, and the use method is reasonable, and it will surely receive good results.