球孢白僵菌YS03菌株对稻水象甲的田间防治效果  

Field Control Effects of Beauveria bassiana Strain YS03 on Rice Water Weevil

作　　者：徐进[1] 杨茂发[1] 狄雪塬 师沛琼[1] 邹晓[2] 

机构地区：[1]贵州大学昆虫研究所贵州省山地农业病虫害重点实验室,贵州贵阳550025 [2]贵州大学生命科学学院,贵州贵阳550025

出　　处：《西南农业学报》2015年第4期1630-1633,共4页Southwest China Journal of Agricultural Sciences

基　　金：贵州省农业科技攻关重大项目"贵州稻水象甲防控技术研究与集成示范"[黔科合NY字(2010)3079];"优效白僵菌YS03菌株防治稻水象甲成虫的应用技术研究与示范"[黔科合NY字(2014)3015]

摘　　要：为利用白僵菌防治稻水象甲,采用田间笼罩接虫法,施球孢白僵菌YS03菌株量为5.0×109个孢子/m2,测定施菌后水稻叶片的取食斑数及水稻分蘖数、穗数、穗粒数、千粒重和产量等指标。结果表明：5.0×109孢子/m2的施用剂量下,球孢白僵菌YS03菌株对稻水象甲成虫在田间的防治效果为40%~60%,减少水稻产量损失达18.75百分点,水稻的分蘖数、穗数、穗粒数都有显著增加,仅千粒重的差异不显著。To control rice water weevil by using B. bassiana,a field experiment of prevention and control of rice water weevil was conducted by using YS03 strain with method of inoculation pest test in cage condition,the dose of B. bassiana was 5. 0 × 109 spores / m2. The authors evaluated the field efficacy of YS03 strain against rice water weevil by measuring a number of rice growth indexes and output indexes such as the number of feeding spots on the rice leaves,rice tillers,spikelets,grains per spikes,1000-grain weight,cell production. Results： The control effect was about 40 %- 60 %,the yield loss rate of return was 18. 75 %,by using YS03 strain to control rice water weevil adults in the fields at a concentration of 5. 0 × 109 spores / m2. The number of rice tillers,spikelets and grains are siginificantly increased,no significant difference in 1000-grain weight only.

关 键 词：稻水象甲 白僵菌 YS03菌株 田间试验 

分 类 号：S435.122.9[农业科学—农业昆虫与害虫防治]