警惕大豆蚜虫重发生根据辽宁省大豆蚜虫测报网点提供的虫量调查和天敌情况，结合全省１９９６年７、８月份天气预报情况综合分析，预计全省大部分地区大豆蚜虫将中等偏轻至中等发生。辽阳、宽甸、建昌、绥中、开原、铁岭等市县的局部地块仍有严重发生大豆蚜虫的趋势。据沈... Be vigilant against soybean aphid heavy occurrence According to Liaoning Province, soybean aphid reporting network to provide insect surveys and natural enemies, combined with the province in July and August weather forecast comprehensive analysis shows that the majority of the province is expected soybean aphids will be moderate to moderate occur. Liaoyang, Kuandian, Jianchang, Suizhong, Kaiyuan, Tieling and other cities and counties in the local block there is still a serious trend of soybean aphids. According to Shen ...