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Control the dosage. It should be based on the temperature, but generally does not exceed 50% of the regular dose. It is necessary to add water strictly according to the dilution factor, and it is not possible to increase or decrease the amount of water at will.
Rational use of pharmaceuticals. Under normal circumstances, due to the low temperature in winter, the insecticidal strength will be affected. When using insecticides, scientific and reasonable selection should be made. Under normal circumstances, stomach poisons and contact agents are less affected by temperature, and systemic and fumigants are affected. larger temperature effects. Such as enemy killing, dichlorvos and other pesticides, low temperature will significantly affect its insecticidal effect; and deltamethrin, phoxim, stone sulfur mixture and other pesticides, at lower temperatures can still play a better insecticidal effect.
Use the medicine during the dormancy period. Fruit trees in winter dormancy period, according to "agricultural Taobao Guide" describes the general tree care can be sprayed play sterilization, thermal insulation effect antifreeze. It not only controls pests, but also is economical and effective.
When pesticides are applied in winter, the degradation rate of pesticides becomes slower, and the residual period of pesticides in crops is also relatively prolonged. It therefore can be added "agricultural Taobao Guide" introduces new lipid membrane increase efficacy, reduce pesticide residues, the transformation of highly toxic pesticide poisoning in the use of pesticides, pesticide poisoning, low toxicity, low toxicity slightly toxic pesticides
Winter application skills
The application is carried out at high temperature on sunny days, because the pests have higher food intake and respiratory intensity than cold weather when the temperature is high in winter. At this time, the insecticide can make better use of the drug, which is beneficial to play the poisoning effect. Eliminate the effects of pests.
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