What are the control methods for the small brown planthopper on corn?
How to control the small brown planthopper on corn? Please explain the methods. When the small brown planthopper breaks out in corn fields, frequent and heavy applications of pesticides are usually required to bring the population under control. In recent years, accidents of phytotoxicity to corn caused by improper pesticide use have occurred frequently in production. Therefore, safe pesticide use should be paid attention to when controlling the small brown planthopper....
How to control the small brown planthopper on corn? Please explain the methods
When the small brown planthopper breaks out in corn fields, frequent and heavy applications of pesticides are usually required to bring the population under control. In recent years, accidents of phytotoxicity to corn caused by improper pesticide use have occurred frequently in production. Therefore, safe pesticide use should be paid attention to when controlling the small brown planthopper.
Use of organophosphates in corn fields When the small brown planthopper breaks out in corn fields, frequent and heavy applications of pesticides are usually required to bring the population under control. In recent years, accidents of phytotoxicity to corn caused by improper pesticide use have occurred frequently in production. Therefore, safe pesticide use should be paid attention to when controlling the small brown planthopper.
When using organophosphate and pyrethroid pesticides to control the small brown planthopper in corn fields, the concentration of the spray solution should be strictly controlled, otherwise phytotoxicity is likely to occur. For example, 48% chlorpyrifos emulsifiable concentrate is generally used as a 2000-fold dilution, and the dilution factor must not be lower than 1000-fold; pyrethroid pesticides are generally used as 2000-3000-fold dilutions. Dichlorvos, phoxim and fenvalerate are prone to causing phytotoxicity when used on corn, so they should generally not be used.
and pyrethroid pesticides to control the small brown planthopper, the concentration of the spray solution should be strictly controlled, otherwise phytotoxicity is likely to occur. For example, 48% chlorpyrifos emulsifiable concentrate is generally used as a 2000-fold dilution, and the dilution factor must not be lower than 1000-fold; pyrethroid pesticides are generally used as 2000-3000-fold dilutions. Dichlorvos, phoxim and fenvalerate are prone to causing phytotoxicity when used on corn, so they should generally not be used.
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