Winter medicine is effective
2023-07-24 03:09:24
Improper use of pesticides in winter will reduce the efficacy and increase production costs. So, how can we improve the efficacy of pesticides? In winter, the temperature is low, and the activities and hazards of pests and diseases are mostly in a hidden and static state. In order to improve the use of pesticides, in addition to selecting the right pesticides, it is necessary to pay attention to the following techniques:
Choose the medicine for sunny days and high temperature period. Because the pests have higher temperature during the winter, the feed intake and respiratory intensity are greater than the cold weather. The liquid is sprayed onto the insect body, and the drugs are brought to the body more, which is beneficial to play the poisoning effect. .
Appropriate increase in dosage should be determined according to 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 selection of pesticides suitable for winter application In general, stomach poisons and contact agents are less affected by temperature, and systemic and fumigants are more affected by temperature. 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.
Priority use of soil pesticides Fruit trees are highly resistant to pesticides during the winter dormancy period. It is economical and effective to control pests with pesticides such as Bordeaux mixture and stone sulphur mixture.
Pay attention to prolonging the safety interval. 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. When controlling pests and diseases of vegetable crops in winter, special attention should be paid to prolonging the safe interval of pesticides to ensure human health.
Choose the medicine for sunny days and high temperature period. Because the pests have higher temperature during the winter, the feed intake and respiratory intensity are greater than the cold weather. The liquid is sprayed onto the insect body, and the drugs are brought to the body more, which is beneficial to play the poisoning effect. .
Appropriate increase in dosage should be determined according to 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 selection of pesticides suitable for winter application In general, stomach poisons and contact agents are less affected by temperature, and systemic and fumigants are more affected by temperature. 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.
Priority use of soil pesticides Fruit trees are highly resistant to pesticides during the winter dormancy period. It is economical and effective to control pests with pesticides such as Bordeaux mixture and stone sulphur mixture.
Pay attention to prolonging the safety interval. 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. When controlling pests and diseases of vegetable crops in winter, special attention should be paid to prolonging the safe interval of pesticides to ensure human health.
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