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1. Selection of pesticides . At present, there are many varieties of pesticides on the market, the quality of pesticides is uneven, and the objects of prevention and treatment are also very different. Therefore, it is necessary to select pesticides according to the objects to be controlled, to achieve symptomatic medication and to avoid blind medication.
2. The configuration of pesticides. Although the configuration of pesticides is not difficult, it is often caused by some problems caused by carelessness or improper operation. First, we must accurately weigh the amount of the drug and the amount of water; second, we must first dilute the mother liquor; third, we must pay attention to personnel and environmental safety.
3. The pesticide is suitable for use. Any kind of pests and diseases, it has its control period, it must be determined according to the specific circumstances, can not blindly use drugs, too early or too late to achieve the desired results, only the correct choice of prevention and control can achieve the best results . The general conditions for the control of different pests and diseases can be determined according to the forecast of the local agricultural sector.
4. Pesticide application technology. Scientific application of pesticide technology is the guarantee of prevention and treatment. Only when pesticides are used strictly in accordance with the operating procedures can the ideal control effect be achieved. First, choose the appropriate equipment, for example, spray the bactericide to choose the nozzle with smaller droplets; spray the insecticide to choose a slightly larger nozzle; spray herbicide is best to use the fan nozzle. Second, it depends on the weather application, windy, rain can not spray; can not spray before rain; dew can not spray; high temperature can not spray under the sun. Some farmers think that the higher the temperature, the better the insecticidal effect of pesticides, but it is not. Spraying in the high temperature and strong light in summer, most of the pests stop the surface activity, hiding in the cool backlight, the medicine is not easy to spray in place. Moreover, at high temperatures, the loss of pesticide volatilization is large, and the decomposition of the drug is fast. Therefore, the efficacy of spraying is reduced. At high temperatures, the drug is highly volatile, and the drug enters the body through breathing and skin pores, which can easily lead to operator poisoning. Try to choose sunny and windless conditions, usually 8-10 am (after dew dry), 5-7 pm (before and after sunset), choose the time when the pest activity is vigorous. Third, according to different control objects, the corresponding application techniques should be adopted. For example, when controlling diseases, since the pathogens are generally on the back side of the crop leaves, the back of the leaves must be evenly applied when applying the seeds; the fruit tree aphids generally occur on the young shoots; the hawthorn leafhoppers are mostly on the back of the old leaves of the fruit trees, sprayed The drug is required to be targeted. Fourth, pay attention to the surrounding crops to avoid phytotoxicity.
5. The safety interval of pesticides. In order to ensure the quality and safety of agricultural products, the safe interval of pesticides must be paid attention to during the use of pesticides, that is, the number of days between the last application and the harvest of crops, that is, the date when pesticides are prohibited before harvest. Applying drugs during the safety interval can ensure that the pesticide residue does not exceed the standard, in order to ensure the quality and safety of agricultural products. Different pesticides have different safety intervals and should be used in accordance with the pesticide labeling regulations.
6, security protection. Pesticides are toxic, and they always pay attention to their own safety during use to prevent people from being poisoned. Wear necessary protective clothing, masks and other protective equipment; smoking, eating and drinking are prohibited during the application; when applying the medicine, it is necessary to stand in the upwind direction and apply crop interlacing; change the clothing and clean the body in time after application.
7. Waste liquid treatment. After the application, the remaining liquid medicine and the waste water for washing the sprayer should be properly disposed of, and should not be randomly scattered. Pay attention to the protection of the environment.
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