The selection of rice insecticides is related to operator health, control effectiveness, cost of use, and pollution to the environment and rice.

1. Low toxicity does not mean that inefficient high toxicity does not mean that the toxicity of high-efficiency pesticides is not determined by their toxicity to pests but by their toxicity to mammals. The pest control effect should be determined according to the type of pest, the pest damage pattern and the mode of action of the pesticide. For example, Saponaria japonica is a lepidopteran borer pest that can be used in the egg stage. Egg-killing pesticides can be used after contact with the fumigating insecticide after infestation. Inhalation of conductive insecticides.

2. To avoid the use of highly toxic and highly toxic pesticides The timing of rice pest control is mainly used in high temperature seasons. 1605. Poisonous or highly toxic pesticides can easily cause poisoning or even death of operators. It is easy to kill natural enemies of insect pests and pollute the environment. Later use may also directly pollute rice. .

3. Selection of Nereistoxins Pesticides Pesticides of Nereistoxins are the preferred rice insecticides in silkworm-free areas. Common insecticides such as dimehypo, insecticidal, etc. have contact toxicity, stomach poisoning, ovicidal killing, and can be absorbed and transported in crops. Low toxicity to human and livestock fish and other characteristics. In particular, the rapid absorption and conduction of these pesticides by the roots are generally stable in water and soil. Therefore, the application of double-dose poisonous soils in shallow-water fields is more effective and has a longer effective period. These insecticides can prevent and control the toxicity of multiple pests on rice against natural enemies, and they are more effective than highly toxic and highly toxic pesticides. However, such insecticides are insect neurotoxic agents that are highly toxic to silkworms and therefore Mulberry leaves should be prevented from drifting around the mulberry forest. Toxic soil application method can avoid drift pollution. Do not use pesticides such as trichlorfon, dimethoate, dichlorvos, yew powder, and bupropion in rice fields where mulberry can be stretched.

4. Regarding the mixed use of mixed pesticides to increase efficiency and expand the scope of control for the purpose of not reacting with each other on the principle of chemical reactions and to use existing equipment. Nereistoxins can be used in combination with various fungicides, but strong chlorinated and sterilized fungicides must be used alone. Two-to-one mixing of leafhoppers and insecticides can increase insect virulence by 1.8 times. The addition of washing powder by 0.05% of the amount of the medicinal liquid can increase the spread of the insecticidal double liquid on the leaf surface of rice by a factor of 3, and greatly improve the effect of spray control.

5. Precautions The applicator should wear good labor protection products to avoid liquid soaping. The body should be sprayed for a long time to avoid the body and clothes after high temperature application.

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