The weather is hot, how to prevent crops from being critical?

When spraying pesticides in summer, I always choose pesticides that can exert their efficacy quickly. I try to avoid using those that take a long time and have a slow effect. Everyone needs to be well protected when taking medicine. Put on a mask and hat, and change into clothes that usually take medicine. It is best to use a disposable mask instead of a cloth. Because of the high temperature in summer, there are many bacteria on it to avoid infection caused by continuous use.

Dew usually appears on crops before 8 o'clock. This will dilute the concentration of the liquid medicine and make the medicine ineffective. After 4 o'clock, the temperature will gradually decrease. Our aim is to finish spraying pesticides within two hours, and the temperature is below 30 degrees. When spraying pesticides on crops in summer, we should pay more attention to the local weather forecast, always pay attention to the weather changes, and ensure that it doesn't rain for four or five hours after spraying pesticides, so as to play the role of pesticides.

Pesticide poisoning often occurs in rural areas, so the operation must be standardized. Avoid high temperature. Protect yourself. If nausea, vomiting, headache and dizziness occur. Be sure to stop the operation. Go to a ventilated place Be sure to put the work clothes in a ventilated place after the operation. If pesticides are sprayed under windy conditions, the wind will also blow away the fog and reduce the use effect. If pesticides are sprayed against the wind, it will pose a threat to the safety of sprayers. Spraying drugs at high temperature at noon is easy to cause poisoning and phytotoxicity. Be sure to check the applicator before applying. Manual sprayers should be inspected and maintained frequently to prevent dripping. In order to prevent dripping, it is best to put on a layer of plastic film on your back and put on pants and gown when spraying.

Some farmer friends mistakenly think that spraying at noon is fast and effective because of their lack of knowledge about spraying. Don't you know that spraying evaporation is large, the effect is poor, and it is very easy to be poisoned, because high temperature is the easiest way to inhale pesticide fog and cause poisoning. Some pesticides and fertilizers are prone to phytotoxicity at high temperature, such as kocide and other copper preparations, such as calcium nitrate. Therefore, these pesticides and fertilizers should not be sprayed at high temperature, but at low temperature at night.