低温处理对南方根结线虫二龄幼虫的影响  

Impact of Low Temperature Treatments to Second Instar Larvae of Root-knot Nematode(Meloidogyne incognita)

作　　者：洪波[1] 李英梅[1] 张锋[1] 陈志杰[1] 张淑莲[1] 

机构地区：[1]陕西省动物研究所,西安710032

出　　处：《西北农业学报》2013年第1期184-187,共4页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：陕西省科学院青年人才基金项目(2011K-16);陕西省科学院重大科技项目(2010K-01);"十二五"农村领域国家科技计划课题(2011BAD31B00)

摘　　要：利用室内培养技术研究-10～0℃低温处理对南方根结线虫(Meloidogyne incognita)二龄幼虫的病情指数和致死时间的影响。结果表明,该线虫在-9℃低温条件下处理24h全部死亡,随温度升高,线虫危害也逐渐加重,在-1℃处理32d以上才能完全将其杀灭。研究结果对陕西省设施蔬菜南方根结线虫病的防治提供数据支持。The impact of low temperature treatments（-10―0 ℃） to disease index and lethal time of second instar larvae of root-knot nematode（Meloidogyne incognita） was studied with indoor culture techniques.The result showed that larvae of M.incognita were all dead when treated at-9 ℃ for 24 hours.The harm of the nematode larvae increased gradually with increasing temperature,and M.incognita was all killed after 32 days with-1 ℃ treatment.The research would provide data support for the control methods of M.incognita in greenhouse of Shaanxi Province.

关 键 词：低温处理 南方根结线虫 二龄幼虫 根结指数 致死时间 

分 类 号：S436.3[农业科学—农业昆虫与害虫防治]