松毛虫质型多角体病毒油剂超低容量喷雾防治松茸毒蛾试验  

ULV spray of DCPV OL against Dasychira axutha

作　　者：林思诚 梁云芳 柯沛强 林明辉 赵同海[3] 黄泽均 

机构地区：[1]茂名市林业科学研究所,广东茂名525000 [2]茂名市森林病虫害防治检疫站,广东茂名525000 [3]中国林业科学研究院森林生态环境与保护研究所,北京100091 [4]信宜市森林病虫害防治检疫站,广东信宜525400

出　　处：《中国森林病虫》2005年第3期29-32,共4页Forest Pest and Disease

基　　金：国家"十五"攻关项目(2001BA509B)子专题"松毛虫质型多角体病毒超低容量油剂剂型研制及林间使用效果评价"部分研究结果

摘　　要：用松毛虫质型多角体病毒油剂超低容量喷雾防治2～4龄松茸毒蛾幼虫,20d死亡率为47.7%～60.6%,存活幼虫感染率69.8%～84.6%,总防治效果85.1%～94.7%。相同病毒用量下的防治效果与常量喷雾相当或略好。合适的用量为1500×108～3000×108PIB/hm2,合适的喷幅为6～10m。ULV of DCPV OL was used against Dasychira axutha larva between its 2nd and 4th instars.The result showed it had a high control effect.The mortality was 47.7%-60.6% within 20 days while over 69.8%-84.6% of the surviving larvae were infected with DCPV and the total control effect was 85.1%-94.7%.The control effects of ULV spray and normal volume spray were almost the same with the same volume of virus.The right volume of DCPV in ULV spray was 1 500×10~8-3 000×10~8 PIB/hm^2,the effective spray range was between 6 and 10 m.

关 键 词：微生物杀虫剂 超低容量喷雾 松毛虫质型多角体病毒 松茸毒蛾 

分 类 号：S763.42[农业科学—森林保护学]