How to improve the control effect of pesticides
Clearly control the target, symptomatic application. Because there are many varieties of pesticides , their characteristics are different, and there are many kinds of diseases, insects, grasses and rats that are harmful to crops. The habits are different. Therefore, the selection of pesticides must fully consider the control objects, crop types and their growth period. Do the right medicine. If the pesticide is misused or misused, it will not be effective.
Master the application period and apply the medicine at the right time. Each disease, insect and grass damage has its best control period. Therefore, the time of application should consider the development period of disease, insect and grass damage, crop growth progress and pesticide quality, so as to timely use the medicine and improve the control effect. At the same time, care should be taken to avoid the sensitive period of pesticides by natural enemies of pests.
Choose the right time and amount of application. The application of pesticides should generally be carried out in the morning or evening on a sunny day. Do not spray pesticides in rainy or windy weather. The application amount of pesticides should be based on the quality, dosage form and environmental factors of the pesticides. The dosage of the field should be calculated according to the recommended dosage of the commodity specification. It should not be increased or decreased at will, otherwise it will cause crop damage or affect the control effect.
Scientifically formulated with pharmaceutical liquids, pay attention to good mix. Before preparing pesticides, you should read the instructions carefully and prepare them correctly according to the requirements. At the same time, pay attention to the mixing of pesticides to improve the control effect, expand the scope of prevention, reduce costs and enhance the safety of humans and animals. However, remember not to mix pesticides that cannot be mixed together, otherwise it will affect the control effect.
Choose the method of application to ensure the quality of the application. Various dosage forms of pesticides have their specific use of instruments and methods. Therefore, according to the dosage form of pesticides and the types of diseases, insects, grasses, rodents and harmful parts, the correct application methods and instruments should be selected to ensure that the medicines are evenly distributed on the surface of crops or pests, achieving scientific, Efficient control effect.
Rotate or mix the drug to prevent the occurrence of drug resistance. The long-term continuous use of a pesticide in a region to control the same disease, insect, and rodent can cause disease, insects, and rats to develop drug resistance, which can significantly reduce or even invalidate the drug. In this regard, management should be strengthened to prevent the use of drugs, mixed drugs, intermittent drugs and other measures to prevent or delay the development of resistance to disease, insects and rodents.
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