黔西南烟草根结线虫病调查研究
摘要 烟草根结线虫病是世界各国烟草生产中的重要病害之一，在苗期和大田期均可发生。由于根结线虫一般在温暖地区轻砂质土或砂壤土发生严重，所以在黔西南州分布范围很广。前几年，主要是兴义市的万屯和鲁屯等乡镇危害严重，其他乡镇不同程度地发生根结线虫病。但是近年来烟草根结线虫病扩展迅速，危害逐年加重，已成为黔西南州烟草生产中亟待解决的重要问题之一。调查黔西南烟草根结线虫病的发病情况，结果表明，黔西南州烟草根结线虫病危害严重，应纳入重要病害研究和防治议程。
关键词 烟草根结线虫；危害症状；发病规律；贵州黔西南
中图分类号 S435.72 文献标识码 A 文章编号 1007-5739（2017）08-0109-02
Investigation of Tobacco Root Knot Nematode Disease in Qianxinan Prefecture
MA Wen-qing
（Qianxinan Prefecture Company，Tobacco Companies of Guizhou Province， Xingyi Guizhou 562400）
Abstract Tobacco root knot nematode is one of the most important diseases in tobacco production of every country in the world that can occur in the field and seedling period.Due to the root knot nematodes often generally occur in warm regions light sandy soil and sandy soil，so widely distributed in Qianxinan Prefecture.A few years ago，tobacco root knot nematode mainly occurs seriously in Wantun and Lutun，and other towns occur in varying degrees of the root knot nematode.But in recent years，the tobacco root knot nematode has expanded rapidly，and the damage has been increasing year by year，which has become one of the important problems to be solved in the tobacco production.Infection situation of Qianxinan tobacco root knot nematode disservice was investigated，the result showed that Qianxinan tobacco root knot nematode harm was serious，which should be included in the agenda of the important disease research and control.
Key words tobacco root knot nematode；harm symptom；occurrence regularity；...
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