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Seven Taboos for Pesticide Use
First, use well water dispensing. Well water contains more calcium, magnesium and other minerals, and they are prone to chemical reactions with liquid chemicals to form sediments, thereby reducing the efficacy. Second, sewage dispensing. Sewage contains a lot of impurities, pharmaceuticals will plug the nozzle, but also destroy the stability of the liquid and reduce efficacy. Third, the weather and high temperature under the application. Wind-blown spray will cause pesticides to drift; spraying in rainy days, the liquid will be washed away by rain and reduce the efficacy; spraying pesticides at high temperatures will cause phytotoxicity and poisoning. Therefore, the best application time is: 8 am to 11 am and 4 pm to 6 pm. The weather is fine and the breeze is spraying. Fourth, abuse of pesticides. The corresponding pesticide should be used according to the type of crop, the object of control, and the properties of the pesticide, so that the right medicine can be prescribed, and at the same time avoid blindly increasing the amount of application, resulting in increased resistance to pests to reduce the control effect, but also easy to produce phytotoxicity. Fifth, flower spray. Crops and fruit trees are applied during flowering and are prone to phytotoxicity. Six, pre-harvest spraying. Because pesticides can cause residues in crops, residues can cause food poisoning if applied before harvest. Seven, a drug used. Long-term use of pesticides in one or a single dosage form makes it easier for pests to develop resistance and reduce control effects, and therefore should be used alternately.