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根据农作物病虫越冬基数,结合2014年气候趋势、农作物布局及生态条件等综合因素分析,沈阳市植物保护站预计今年全市农作物重大病虫害总体维持重发态势,发生面积约为2300万亩次。其中玉米螟、水稻纹枯病、稻瘟病、蔬菜灰霉病、小菜蛾、旧保护地局部土传病害及生理病害呈中等偏重至大发生态势;玉米顶腐病、玉米丝黑穗病、玉米大斑病、花生叶斑病流行风险较高;粘虫、稻飞虱、草地螟、玉米红蜘蛛、水稻条纹叶枯病等迁飞性、流行性病虫害在部分地区有暴发的可能。1.地下害虫和苗期害虫地下害虫:预计蛴螬类、蝼蛄类、金针虫类等地下害虫
According to the winter crop base of crop pests and the comprehensive factors such as climate trend, crop layout and ecological conditions in 2014, Shenyang Plant Protection Station estimated that the overall crop diseases and insect pests in the whole city will maintain the recurrence situation this year with an area of about 23 million mu. Among them, corn borer, rice sheath blight, rice blast, gray mold of vegetables, diamondback moth, the old soil-borne diseases and physiological diseases in the old protected areas ranged from moderate to heavy; corn top rot, maize head smut, corn Epidemics of spotted leaf spot and peanut leaf spot were high. The migratory flying insects such as armyworm, planthopper, meadow moth, red spider mite and rice stripe virus were likely to have epidemic pests and diseases in some areas. 1. Underground pests and seedling pests Underground pests: underground pests such as 蛴 螬, 蝼 蛄 category, insects and other insects are expected