It is reported that in the northern provinces and regions and the recent second-generation movement of adult insects of the armyworm, it is expected that the third-generation slimeworms will have overall moderate to heavy load. In early August, large-scale strong convective rains continued to occur. The occurrence and extent of the third-generation armyworms significantly increased and expanded, and the probability of local outbreaks increased. Focusing on the characteristics of re-emergence, outbreak and geographical concentration of three generations of the armyworms in the corn field, once high-density pests are discovered, they will actively organize specialized anti-government rules to mobilize high-stem sprayers, helicopters, drones, and air-borne sprayers. Such large-scale application of pesticides, centralized prevention and control, effective control of young larvae, strict control of its transfer hazards. Vigorously promote green prevention and control technologies such as light trapping, sex trapping, and biological control. At present, there are many kinds of pesticides for controlling armyworm in China, such as pyrethroids, abamectin, emamectin, benzoate, etc., which can basically meet the needs of prevention and control of the third generation of armyworm. In view of the resistance of the third-generation armyworm, the current emphasis is on the prevention and control of the first and second generation of armyworm pests, the scientific deployment of pesticides, the combination of emergency response and long-term management, and the combination of chemical and biological pesticides. The method used, under the premise of timely control of population density, strives to achieve long-term control of the armyworm. In the current hot season, special attention should be paid to directing farmers to choose their work when the temperature is low in the morning and evening, do a good job of pesticide protection and prevent pesticide poisoning accidents; when organizing large-scale aircraft operations, attention should be paid to preventing human and livestock health, fish farming and raising. The adverse effects of other industries such as silkworms and beekeeping.
