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根据全国农技推广中心发布的《2014年全国农作物重大病虫害发生趋势预报》,针对近年来冬季气候偏暖,雾霾偏重等特点,需做好小麦赤霉病、白粉病、蚜虫、粘虫等常见病虫害的综合防治工作。结合2013年小麦病虫发生的情况,加之2013年冬季气温较往年偏高,降水少,有利于粘虫和蚜虫的越冬生存,据冬季的田间调查来看,田间残存的虫口基数大,对今年的害虫发生有利。此外,小麦赤霉病是长江流域常发性的病害,近年来随着冬季温暖和雾霾多发,有向北扩散和加重危
According to the “2014 National Trend Forecast of Major Pests and Diseases Occurred in Crops” issued by the National Center for Agricultural Technology Extension, and in light of the winter climate warming in recent years, smog and other characteristics of emphasis, wheat scab, powdery mildew, aphids, armyworms, etc. need to be done Common pest and disease prevention and control work. Combining the occurrence of wheat diseases and insect pests in 2013 and the relatively high winter temperatures in 2013 as compared with previous years and less precipitation, it is in favor of the survival of armyworm and aphids in winter. According to the field survey in winter, the number of remaining insect population in the field is large. The pest occurs favorably. In addition, wheat head blight is a common disease in the Yangtze River basin. In recent years, with the warmth of winter and the frequent occurrence of haze, it has spread to the north and aggravated