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近几年,江西省万安县大力调整农业产业结构,不断扩大价格较好的生姜的种植面积,但受气候、栽培管理等多种因素的影响,该地生姜病害呈趋重发生态势,尤其高温多雨的7月后最易发生生姜茎腐病,一般亩减产12%,发病严重田块减产高达38%以上,对该县生姜生产造成了严重威胁。1发生症状叶片染病,先从近地表茎叶的叶尖端及叶缘褪绿变黄,后蔓延至整个叶片,并向上部叶片扩展,至整株叶片黄化凋萎。地上茎染病,先从茎基叶鞘褪色,无光
In recent years, Wan’an County, Jiangxi Province, vigorously readjust the industrial structure of agriculture and continue to expand the planting area of better-priced ginger. However, due to various factors such as climate, cultivation and management, the ginger disease in this area is becoming more and more serious. In particular, After the hot and rainy July, ginger stalk rot is most likely to occur. Generally, the yield of mu is reduced by 12% and that of severely affected plots is reduced by more than 38%, which poses a serious threat to the production of ginger in this county. 1 symptoms of leaf disease, first near the surface stem leaf tip and leaf margin chlorotic yellow, then spread to the entire leaf, and to the upper leaf expansion, to the entire plant leaf wilting. Ground stem disease, first stalk base sheath fade, dull