Correct use of pesticides

There are many types of insecticides for symptomatic use, each of which has its own insecticidal characteristics. For example, the scope of enemy killing and pest control is wide, but it is not effective for earthworms. Shepherd pine is effective only for aphids; phoxim has a long effect on soil pests and is suitable for controlling underground pests; Dimethoate has a systemic effect and is suitable for prevention and control. Insects such as locusts attract pests; dichlorvos and trichlorfon can also control pests on sorghum but also cause phytotoxicity to sorghum. Therefore, in the prevention and control of pests, it is necessary to select effective and harmless pharmaceuticals based on the pest species, development stage, living habits, and sensitivity of crops to pharmaceuticals, which is the key to rational drug use.

The insecticides at different developmental stages of pesticide application at different times are not the same as the insecticides. Generally, the youngest larvae have the lowest resistance, especially the young larvae such as borers, such as borers and corn borers, on the surface of crops. , And the duration of pesticides is limited. Therefore, when controlling pests, it is necessary to choose the most effective period of pest control.

Pay attention to the methods The low-volume, ultra-low-volume spray currently promoted to prevent and control pests on the surface of crops has the advantage of saving ergonomic efficiency than conventional sprays. Application of granules or medicaments for boring is more effective and labor-saving than spraying methods. Drifting, etc.; with the method of spraying the stem or root zone application method to prevent and control pests, has the advantages of saving labor, saving medicine, and protecting natural enemies. In addition to choosing the appropriate method of pesticide application, attention should be paid to the amount and frequency of pesticides. If the amount of pesticides is small, the prevention and control purposes cannot be achieved, and when the amount of drugs is large, it is easy to produce phytotoxicity and waste.

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Drum Tomato Paste

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