球孢白僵菌 YS03 菌株对稻水象甲成虫取食的影响

为了解不同浓度的球孢白僵菌孢子悬浮液对稻水象甲成虫取食的影响,室内测定了球孢白僵菌（Beauveria bassiana）YS03菌株在1.0×106、1.0×107、1.0× 108个孢子/mL 3个浓度梯度感染稻水象甲成虫后1～14d的每天取食斑数量和长度.结果表明,在处理后到实验结束的14d内,单头稻水象甲成虫取食斑数量和长度随着孢子浓度的增加而减少,与对照组有显著差异.单头成虫取食斑长度最小和取食斑数量最少时仅为对照组的30.98％和42.71％.不同孢子浓度处理下单头稻水象甲成虫的取食斑数量与长度间存在显著的回归关系,回归系数的大小顺序为：CK＞1.0×106＞1.0×107＞1.0...

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Bibliographic Details
Published in广东农业科学 Vol. 40; no. 20; pp. 73 - 76
Main Author 徐进 杨茂发 师沛琼 杨大星 尚小丽 邹晓
Format Journal Article
LanguageChinese
Published 贵州大学昆虫研究所,贵州山地农业病虫害重点实验室,贵州贵阳550025%贵州大学生命科学学院真菌资源研究所,贵州贵阳,550025 2013
Subjects
YS03菌株
取食斑数量
取食斑长度
球孢白僵菌
稻水象甲
取食斑数量
YS03菌株
取食斑长度
稻水象甲
球孢白僵菌
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Summary:为了解不同浓度的球孢白僵菌孢子悬浮液对稻水象甲成虫取食的影响,室内测定了球孢白僵菌（Beauveria bassiana）YS03菌株在1.0×106、1.0×107、1.0× 108个孢子/mL 3个浓度梯度感染稻水象甲成虫后1～14d的每天取食斑数量和长度.结果表明,在处理后到实验结束的14d内,单头稻水象甲成虫取食斑数量和长度随着孢子浓度的增加而减少,与对照组有显著差异.单头成虫取食斑长度最小和取食斑数量最少时仅为对照组的30.98％和42.71％.不同孢子浓度处理下单头稻水象甲成虫的取食斑数量与长度间存在显著的回归关系,回归系数的大小顺序为：CK＞1.0×106＞1.0×107＞1.0×108个孢子/mL处理.试验结果为全面评价球孢白僵菌YS03菌株防治稻水象甲的作用提供了依据,同时也为球孢白僵菌的田间防治试验中采用稻水象甲成虫取食斑总数和总长度来测算其虫口数提供了参考.
Bibliography:44-1267/S
Beauveria bassiana; YS03 strain; rice water weevil; No.of feeding scars; length of the feeding
XU Jin1, YANG Mao-fa1, SHI Pei-qiong1, YANG Da-xing1, SHANG Xiao-lil, ZOU Xiao2 （1. Institute of Entomology, Guizhou University, Guizhou Key Laboratory for Plant Pest Management of Mountainous Region, Guiyang, Guizhou 550025, China; 2. Institute of Fungus Resources, Guizhou University, Guiyang 550025, China）
The objective of the study was to different concentration of Beauveria bassiana impacts on adults of the rice water weevil feeding, In laboratory tests, Beauveria bassiana YS03 in 1.0xl06 spores/ml, 1.0×107 spores/ml and 1.0×10s spores/ml concentration gradient of spore suspension were bioassayed against the rice water weevil and the No. of feeding scars per adult and Length of feeding scars per adult were observed daily for 14 days. The mail results are as follows： there was a significant difference between the treated group and the contrasted group, the No. of feeding scars per adult and length of feedi
ISSN:1004-874X