Winter is the best time to apply pesticides.

The best time to apply pesticide in winter: after 10 in the morning and before 15 in the afternoon.

Application time: the first mentioned temperature mainly refers to the temperature at the time of application, which is basically when the temperature is good, that is, around noon. Therefore, the time of applying pesticide one day should be after 10 in the morning and before 15 in the afternoon. If it is too early or too late and the temperature is too low, it is not recommended to apply pesticide. ?

1. Temperature during application: Temperature plays a very important role in the use of pesticides. If the temperature is appropriate, the pesticide effect is good and it is not easy to cause phytotoxicity. On the contrary, if the temperature is too low, it will not only cost money but also get no effect. In the event of phytotoxicity, the loss outweighs the gain.

So generally speaking, when spraying pesticides in winter, it is suggested that the temperature should be above 10 degrees, and of course 15 degrees and 20 degrees are better. At the same time, pay attention to the weather forecast, and there will be no strong cooling or rainfall within one week after spraying. ?

2. Weather when applying pesticide: It is not allowed to apply pesticide on cloudy and rainy days. I believe we all know that being washed away by rain after pesticide application means not using pesticides, which may also cause pesticide damage. So it is ok to choose sunny and windless weather. Why should there be no wind? Let's think about it. The herbicide you hit drifted to other crops in other people's homes, causing phytotoxicity. What should I do? ?

3. Pesticide dosage: Do not increase the pesticide dosage privately. As mentioned above, whether it is weeds, pests or diseases, the resistance in winter is not very great. Just follow the instructions. Don't increase the dosage without permission, for fear that the effect is not good. The end result may cause the crops to suffer together. ?

Drug-free treatment:

If the temperature is too low, spraying pesticides is not recommended. For example, it's 65438+the end of February. For winter wheat, an open-air crop, there are few pests and diseases in the field at this time. Bacteria and eggs overwinter in soil, weeds or other places, and their living environment is inhibited when the weather is cold, which basically does not cause harm.