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近两年来,蔬菜根结线虫病在我县菜区普遍发生及危害严重,导致蔬菜产量和品质大幅度下降。为搞好防治,我们摸索出一套科学有效的综合防治技术,防效达85％以上。 一、危害症状 该病主要发生在植株根部,严重时靠近地面的茎基上也有发生,以侧根和须根受害最重,发病的根上形成许多瘤状物(虫瘘),称为根结,其大小如油菜籽、绿
In the past two years, the root-knot nematode disease in vegetables in our county is widespread and serious harm, resulting in a sharp decline in vegetable yield and quality. In order to do a good job of prevention and treatment, we explored a set of scientific and effective integrated prevention and control technology, with an effectiveness of over 85%. First, the harm symptoms The disease occurs mainly in the plant roots, in severe cases near the ground stem base also occurred in the most affected lateral roots and fibrous roots, the incidence of the formation of many root-shaped tumor (fistula), known as the root knot, its Size as rapeseed, green