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1 According to different control objects, choose the right pesticide.
2 According to the occurrence of the control object, determine the application time.
3 Master the effective amount of medication and apply it in a timely manner.
4 According to the characteristics of pesticides, choose the appropriate method of application.
2, the rational use of pesticides 1 rational use of low toxicity and low residual pesticides. (Pesticide residue: refers to the general term for trace amounts of pesticides, toxic metabolites, degradants, and impurities remaining in organisms, agricultural and sideline products, and the environment after the use of pesticides. The amount of residues is called the residual amount, which is in How many milligrams or micrograms, nanograms are expressed).
2 Give full play to the efficacy of pesticides. Must be done first, the right medicine, the second is to grasp the medication period, that is, select the best application period. The third is to grasp a reasonable amount of medication.
3 Prevent pests from becoming resistant to pesticides. Drug resistance: Insects have the ability to tolerate the ability to kill the majority of individuals in the normal population and develop in their population. In order to prevent pests from developing drug resistance, comprehensive control measures should be applied to the characteristics of the occurrence of pests and diseases to minimize the use of pesticides. Use pesticides when necessary, but also scientific and rational drug use. Must be done: First, the right medicine. Strictly control the amount of medication and the number of medications used, and the number of pesticides used during a growing season of a crop must not exceed 3 times. The second is rotation of medication. This is an important measure to delay the development of pest resistance. The rotation method can be used during a growing season or in different growing seasons. The third is to use mixed pesticides or synergists. This is an important means to overcome pest resistance. A good mixture of pesticides can not only improve the control effect, but also delay the development of insect resistance. At the same time, the mixed pesticide must also be used in rotation, otherwise it may take a long time to use, and it may also produce drug resistance.
4 Master the rational drug resistance of plants. (ie capacity)
5 Strictly enforce pesticide safety intervals. Safety interval: This is the number of days between the last application and the harvest time of the crop. The amount of pesticide residues in agricultural products harvested more than the number of days specified in the safety interval will not exceed the national maximum pesticide residue limit, which can ensure the safety of consumers. The safety interval is closely related to the amount of pesticide residues. The country is strengthening the detection of pesticide residues in agricultural products. For agricultural and livestock products with pesticide residues exceeding the national standards, it is prohibited to eat.
How to use drugs safely and safely
1, the use of pesticides must follow: