摘要
对采自云南省各地州烟草根结线虫发生地域的土壤、病根样品进行根结线虫卵寄生真菌的筛选、测定,从中筛选到了5株对南方根结线虫卵寄生率达69.5％-95.5％的菌株。田间小区试验表明,生防菌剂在烤烟团棵期前对南方根结线虫防效可达35.49％-84.29％,其中生防菌FDT-10、HLD-5-8的防治效果与化学药剂相当。
Soil and roots were collected from fields where the tobacco nematode disease occurred. The parasitical fungi were isolated from larvae and eggs and S of 432 strains were effective in vitro by the examination of parasitical and hatching rates of eggs, the parasitical rates of the eggs of M.incognita were ranged from 69.5% to 95.5%. And their biocontrol efficacy were from 35.49 to 84.29% when they were tested in the trails. Among them starins FDT-10 and HLD-5-8 showed similar control efficacy with chemical pestiside.
出处
《西南农业学报》
CSCD
2004年第B05期151-154,共4页
Southwest China Journal of Agricultural Sciences
关键词
烟草
根结线虫
生物防治
云南
土壤
寄生真菌
tobacco nematode
parasitical fungi of eggs
M.incognita
parasitical rates
