What kinds of pesticides are better for controlling rice planthoppers?
When the amount of 100 insects in the field reaches 1,000, spray the pesticide immediately. There is a plot of water, and the agent can be used as a 25% fluocinon WP with 50 g/mu and 40-45 kg water. Should be sprayed on the plant in the lower part of the rice plant fly habitat damage, in order to improve control efficiency. It is best to keep shallow water in the field when applying pesticides. For blocks with no water, use 80% of dichlorvos emulsifiable concentrate 300 ml of mixed soil 15-20 kg per acre and apply it once. To protect against dichlorvos mixed soil and field application, gloves or plastic bags must be mixed and spread to prevent poisoning through skin contact.
At present, the most suitable species are: buprofezin, dichlorvos, chlorpyrifos (Lesben), and Ruijinte. In terms of specific applications, it is advisable to use fluazifloxacin and other agents for the prevention and control of pesticides that have been harvested for more than 15 days, and to use drugs with short residual duration such as dichlorvos and chlorpyrifos for less than 15 days before harvesting. Special attention should be paid to: Stop using chemical pesticides 7 days before harvest to prevent rice pesticide residues.
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