几种生物农药对黄瓜霜霉病的防治效果  

Control effect of several bio-fungicides against cucumber downy mildew

作　　者：李红霞[1] 韩秀英[1] 马志强[1] 张小风[1] 王文桥[1] 潘文亮[1] 

机构地区：[1]河北省农林科学院植物保护研究所,河北保定071000

出　　处：《农药》2006年第11期778-779,共2页Agrochemicals

基　　金：河北省科学技术研究与发展项目(03220163D)

摘　　要：测定了几种生物农药对黄瓜霜霉病的田间防治效果,结果表明:10亿活孢子/g枯草芽孢杆菌WP使用浓度在(3.3￣1.25)×106cfu/mL范围内,相对防治效果达到71.78%￣82.75%,0.3%苦参碱AS使用浓度在22.5￣50.0ga.i./hm2范围内,相对防效66.83%￣77.04%,且对有益生物无害。The effects of several bio-fungicides on the control of cucumber downy mildew were studied. The results show that control effects of wettable powder which was made of Bacillus subtilis Y1336 were 71.78% and 82.75% with the concentration of 1.25 × 10^6 cfu/mL and 3.3× 10^6 cfu/mL, respectively, and that of 0.3% matrine AS（ an abstract from Sophoraflavescens） were 66.83% and 77.04% with the concentration of 22.5 g a.i./ha and 50.0 g a.i./ha, respectively. These bio-fungicides were no harm to biology.

关 键 词：生物农药 黄瓜霜霉病 田间防治效果 

分 类 号：S436.421[农业科学—农业昆虫与害虫防治]