Prevention and Control of Gray planthopper in Corn Field

In recent years, accidents of drug damage to corn caused by improper use of drugs in the process of controlling gray planthopper occurred frequently in corn production. Therefore, attention should be paid to the safe use of drugs in the control of gray planthopper.

The use of organophosphorus ash planthopper in corn fields usually requires frequent and massive use of drugs to control the number of insects. In recent years, accidents of drug damage to corn caused by improper use of drugs occurred frequently in production. Therefore, attention should be paid to the safe use of drugs in the control of gray planthopper.

When organophosphorus and pyrethroid pesticides are used to control gray planthopper in corn field, the concentration of pesticide solution should be strictly controlled, otherwise it is easy to cause drug damage. For example, 48% chlorpyrifos EC generally uses 2000 times liquid, and the dilution multiple should not be less than 1000 times; permethrin pesticides generally use 2000-3000 times liquid. Dichlorvos, phoxim and fenvalerate are prone to drug damage when used on corn, so generally do not use them.

The concentration of pesticide solution should be strictly controlled when controlling gray planthopper with pyrethroid pesticides, otherwise it is easy to cause drug damage. For example, 48% chlorpyrifos EC generally uses 2000 times liquid, and the dilution multiple should not be less than 1000 times; permethrin pesticides generally use 2000-3000 times liquid. Dichlorvos, phoxim and fenvalerate are prone to drug damage when used on corn, so generally do not use them.