What problems should be paid attention to when using pesticides in summer?

One must use drugs rationally
1. The right medicine.
There are many types of pesticides and their characteristics are different. The most suitable pesticide should be selected for the specific control object.
2 timely medication.
Medication time is right, control effect is ideal. Such as protective fungicides must be used before the onset or early onset. Herbicides should be applied in proper dosage form, such as pre-emergence application and stem and leaf treatment.
3 strictly control the amount of application. Any pesticide should be used according to the recommended dosage. Any increase or decrease can easily cause damage to crops or reduce control efficiency.
4. Apply uniformly and thoroughly. Can not re-spray or missed spray to ensure the safety of crops, pests and weeds effective.
5. Reasonably mix pesticides. Pay attention to the principle of mixing pesticides. Mixing can not increase toxicity to humans and animals. No chemical changes can occur between active ingredients, and no increase in medication costs.
6. To apply pesticides safely, disable highly toxic pesticides.
Pharmaceuticals and pesticides should be applied to prevent pesticides from corroding the skin. It is prohibited to spray pesticides at high temperatures during the summer noon. The continuous application time should not be too long. Keep the liquid at the spraying site to prevent poisoning of humans and animals. In particular, biological pesticides, ultraviolet rays in the sun have a killing effect on spores, direct light irradiation for 30 minutes, spores can be about 50% of death, irradiation for 1 hour, the mortality rate of up to 80%. Therefore, the application of biological pesticides can be applied after 4 pm, cloudy days without moderate to heavy rain, and can be applied throughout the day.
Second, problems occur in time to deal with
1. When the drug efficacy is poor or phytotoxicity occurs, the drug should be promptly sent to the pesticide testing unit for inspection. If it is unqualified or inferior, it can be filed with the industrial and commercial, consumer association, and technical supervision departments or brought to court.
2. The occurrence of injury and timely remedy. The first is fertilization remediation, which produces phytotoxicity on the leaf surface, such as drug spots, keels, or yellowing of the leaves. Fertilizer can be used to reduce the degree of injury. Commonly used foliar dressings are used to remedy the situation. The second is to suppress or disturb plants. Herbicides that grow are harmful and can be released by spraying gibberellin.

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