化学农药用量减少2011年上半年国内遭遇低温、干旱、洪涝等极端天气,全国病虫草害发生较轻。南方地区遭遇旱涝急转,稻瘟病在大部分稻区中等或偏轻发生,玉米病虫害中等或偏轻发生。与此同时,甲维盐、吡蚜酮等高效低毒低用量药剂推广面积进一步加大;杀虫灯、黄板诱杀、性诱剂诱杀、生物防治技术等绿色防控技术进一步在全国600多个县市推广应用;专 Reduced use of chemical pesticides During the first half of 2011, China suffered from extreme weather such as low temperature, drought and floods. Pest, disease and pests occurred less in the country. Sudden floods and droughts occurred in the southern areas, and rice blast occurred moderately or slightly in most of the rice areas. Maize pests occurred moderately or slightly. At the same time, the promotion area of ​​high-efficiency, low-toxicity and low-dose agents such as carbaryl and pymetrozine further increased; more than 600 green prevention and control technologies such as insecticidal lamp, yellow board trapping and killing, A county promotion application;