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今年油菜种植面积大、感病品种比例高,菌核病主发区菌源充足,田间子囊盘密度较高,且江淮北部、西南地区东南部4~5月份降水偏多。综合以上因素分析,3月24日全国农业技术推广服务中心印发了《2014年油菜菌核病发生趋势预报》(植物病虫情报2014年第7期)文件,预计今年秋播油菜菌核病偏重发生,程度重于上年,发生面积约5000万亩,其中,湖北江汉平原东部大发生,湖北大部、湖南、江西、安徽、浙
This year a large area of rapeseed cultivation, a high percentage of susceptible varieties, sclerotinia main source of sufficient bacteria, astronomical high density disk, and the northern JAC, southeastern Southwest 4-5 month precipitation more. Based on the analysis of the above factors, the Agricultural Technology Extension and Service Center of China published the “2014 Trend Forecast of Sclerotinia sclerotiorum” (Plant Disease and Insect Pests Information Issue 7, 2014) document. It is expected that this autumn scrambled Penicillium sp. Occurred, the degree is heavier than the previous year, the occurrence of an area of about 50 million mu, of which, the eastern part of Hubei Jianghan Plain occurred in most of Hubei, Hunan, Jiangxi, Anhui, Zhejiang