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余姚市高山茭白采收期在8月中旬至9月上旬,此时平原无茭白采收,又是夏季蔬菜淡季,茭白销售价格看好,大力发展高山茭白是山区农民增收的一条重要途径。但在生产过程中,严重的病虫危害成为高山茭白无公害生产的重要障碍。现将高山茭白主要病虫害的种类和综合防治技术介绍如下。1.主要病虫害种类(1)茭白锈病茭白锈病主要为害茭白叶片,在叶鞘上也有发生。发病时,茭白叶片的正面及叶鞘上散生黄色或铁锈色隆起的小疱斑,疱斑破裂,散发锈色
Yuyao Takayama harvest date from mid-August to early September, when plain plains harvest, but also the off-season summer vegetables, boiled white sales price optimistic, to develop alpine Baibai mountainous areas is an important way for farmers to increase income. However, in the production process, the serious pest and disease hazard has become an important obstacle to the pollution-free production of Alnus blazei. Now the main types of potherb mustards and comprehensive prevention and control techniques are as follows. 1. Major Pests and Diseases (1) 茭 White rust 茭 White rust is mainly caused by 茭 white leaves, which also occurs on leaf sheaths. Occurrence, the white leaves of the front and leaf sheath scattered scattered yellow or rust colored bulge, blister spot rupture, rust