GB/T 17980.80-2004

This standard specifies the field trial methods and efficacy evaluation criteria for insecticides used to control armyworm (Mythimna separata) in cereal crops such as wheat, rice, and maize. It is applied by agricultural researchers, pesticide registrants, and plant protection technicians to conduct standardized field efficacy tests, ensuring consistent and comparable data for pesticide registration and recommendation. The guideline covers trial design, application techniques, investigation timing, and data analysis for assessing insecticide performance under real farming conditions.