The use of chemical pesticides to control pests and weeds is a necessary measure for agricultural production. On the basis of mastering the performance of pesticides, it is necessary to pay attention to the following principles to achieve scientific, rational and safe use of pesticides.
(1) symptomatic, timely medication. According to the types of pests and weeds, and the hazards of pests and weeds, select different types of insecticides, fungicides and herbicides. Different pesticide species have different control effects on different control objects. Before the application of pesticides, we must seriously investigate pests and diseases, apply pesticides during the best period of prevention and treatment, and achieve symptomatic medication. Choose to prevent and control the disease in the early stages of the disease.
(2) ensure the application of technology and quality. Applicators must choose quality assurance spray equipment, accurately weigh pesticides, pesticides must be measured in accordance with the pesticide instructions, can not arbitrarily increase the dosage, especially herbicides, to avoid waste and pollution of the environment, agricultural products. Not long-term use of a single pesticide, scientific and rational compounding pesticides to delay the emergence of disease resistance.
(3) Pay attention to safe medication. Ensure safety intervals and scientific application of pesticides to prevent human and animal poisoning. Pay attention to the cleaning of the spraying equipment and use fresh water for dispensing. At present, some of the herbicides used in production are ultra-efficient. Once certain types of pesticides remain in the pesticide-applied devices, or if the water used to formulate the pesticides is contaminated with certain types of pesticides, it is easy to cause phytotoxicity to sensitive crops.
(4) Ensure the quality of pesticides. Notice that the regular pesticide sales outlets purchase three kinds of pesticides.
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