根据2016年浙江省粮油作物主要病虫发生情况、耕作栽培制度和作物布局等情况,预计2017年浙江省农作物重大病虫害总体为偏重发生年份,全省累计发生面积约9000万亩次。1.麦类赤霉病:预计中等发生,其中小麦赤霉病为中等偏重发生,发生面积约为80万亩。2.麦类蚜虫:预计中等发生,发生面积约为100万亩次。3.麦类灰飞虱:预计中等偏轻发生,发生面积约为20万亩次。 According to the occurrence of major diseases and pests of cereals and oil crops in Zhejiang Province in 2016, cultivation and cultivation system and crop layout, the major pests and diseases of crops in Zhejiang Province are estimated to be heavily year-on-year in 2017, with an accumulated area of ​​about 90 million mu in the province. 1. Wheat scab: Expected to occur moderately, of which wheat scab occurs moderately, with an area of ​​about 800000 acres. Wheat aphids: expected to occur moderately, the occurrence of an area of ​​about 1000000 acres. 3. Wheat-type planthopper: It is estimated that moderate-to-moderate light occurs with an area of ​​about 200,000 mu.