The improper use of pesticides in winter will reduce efficacy and increase production costs. So, how can we improve the efficacy of pesticides? In winter, the temperature is low, and most of the activities and hazards of pests and diseases are hidden and stationary. In order to increase the use of pesticides, in addition to selecting the pesticides on the roads, the following skills must be mastered:

Choose sunny high-temperature medication because the pests in the winter when the temperature is high, the food intake and respiratory intensity is greater than the cold weather, the liquid sprayed on the body, the drug is also brought to the body more, is conducive to play poisonous effect .

Appropriately increase the dosage should be based on the temperature, but it is generally not more than 50% of the conventional dosage. Water should be added in strict accordance with the dilution factor. Do not arbitrarily increase or decrease the amount of water.

Appropriate selection of pesticides suitable for winter application Generally, stomach poisons and contact poisons are less affected by temperature, and inhalants and fumigants are more affected by temperature. For pesticides such as enemy killing and dichlorvos, low temperatures will significantly affect their insecticidal effects, while pesticides such as deltamethrin, phoxim, and lime sulfur can still exert better insecticidal effects at lower temperatures.

The preferential use of soil pesticide fruit trees during winter dormancy period is resistant to pesticides. Controlling pests with pesticides such as Bordeaux mixture and lime sulfur is economical and effective.

Pay attention to prolonging the safety interval of applying pesticides in winter. The degradation rate of pesticides will be slowed down, and the residual period of pesticides in crops will be relatively prolonged. When pests and diseases of vegetable crops are controlled in winter, special attention should be paid to prolonging the safety intervals of pesticides to ensure human health.

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