摘要
在实验室内的凹玻片测试结果表明:接种淡紫拟青霉(Paecilomyces lilacinus)后,使南方根结线虫1号生理小种卵的孵化率明显降低,接种5天后的孵化率比对照降低一半,接种11天后卵寄生率达58.20％;温室盆栽试验结果表明:每40平方米1.5公斤、3.0公斤用量下,当季对花生北方根结线虫的卵寄生率达62.09％。53.99％;相同用量的大田试验结果表明;前期卵寄生率分别为18.72％—63.08％、22.92—32.76％,后期卵寄生率分别为19.42％,21.13％,防治效果分别为5.13％—22.45％,23.04％—25.50％,说明淡紫拟青霉对南方根结线虫1号生理种、花生北方根结线虫确有一定的防治效果。
In laboratory experiment,hatching ratio of eggs of M.incognita host race 1 was reduced significantly with P.lilacinus inoculation,parasitic ratio of eggs was 58.20% after inoculation 11 days.The following treatments of P.lilacinus at 1.5kg/40m2,3.0kg/40m2 were applied to control M.hapla in greenhouse and field microplot.The results showed parasitic ratio of eggs was 62.09% ,53.99% respectively in greenhouse; 18.72-63.08% ,22.72-32.76% in former stage,19.42%,21.13% in harvest stage in field experiments.Effect.of control was 5.13-22.45%,23.04-25.50% respectively in field experiments.
出处
《中国油料》
CSCD
北大核心
1989年第3期45-48,共4页
关键词
花生
根结线虫
拟青霉菌
生物防治
Paecilomyces lilacinus
Meloidogyne incognita
Meloidogyne hapla
Bio-control
