近几年，随着农业结构调整，茭白成为圩区重要的经济作物，种植规模和面积不断扩大。茭白胡麻斑病又名叶枯病，由于茭白大面积扩种，其流行为害日趋严重。据８月中旬大田调查，一般病叶率为８０％～１００％，病情指数高达５０～７０，常造成大面积叶片半枯死或枯死。胡麻... In recent years, with the adjustment of agricultural structure, Zhaobai has become an important economic crop in the polder areas, and the scale and area of ​​cultivation have been continuously expanded.茭 white flax spot disease, also known as leaf blight, due to the large area of ​​茭 white expansion, the epidemic increasingly serious harm. According to Daejeon in mid-August survey, the general disease rate of leaves was 80% to 100%, the disease index as high as 50 to 70, often resulting in a large area of ​​leaves half-dead or dead. flax...