论文部分内容阅读
芹菜根结线虫病是芹菜园地最重要病害之一,它为害芹菜根部,在根上形成许多大小不一的近球形的瘤状物或根结(虫瘿),虽然根瘤或根结部上端往往还会产生细小新根,但以后又会感染呈根结状肿大。病重株地上部分生长衰弱,矮小,叶色较淡,甚至造成芹菜不能上市;留种芹菜则植株不结实或结实不良。此病在芹菜种植区有逐年加重趋势,为此,作者进行3年的系统研究,摸索了一套切实可行的无害化防治技术,现将结果总结如下。
Celery root knot nematode is one of the most important diseases of celery garden. It harms the root of celery and forms many kinds of near-spherical nodules or root knots (worms) with different sizes on the root. Although the upper part of nodules or root knots often Will have a small new root, but later the infection was root-like swelling. The sick part of the above-ground part of the growth of weak, short, leaf color lighter, or even cause the celery can not be listed; celery remaining plant is not strong or bad fruiting. The disease in celery growing areas have increased year by year trend, for which the author for 3 years of systematic research and explore a set of practical harmless control technology, the results are summarized below.