【摘要】 经室内侵染力测定,球孢白僵菌Beauveria bassiana和金龟子绿僵菌Metarhizium anisopliae皆能侵染雷公藤丽长角巢蛾Xyrosaria lichneuta幼虫,不同菌株的侵染力存在显著差异。3株白僵菌中,Bb27菌株毒力最强,菌液为1×10⁵～1×10⁹个·mL^-1五个不同浓度梯度的孢子悬浮液时,害虫15 d校正死亡率在58.3%～100%之间;LT₅₀分别为9.36 d、6.26 d、3.89d、2.54 d、2.10 d;LC₅₀为4.87×10⁴个·mL^-13株绿僵菌中,MaZPTP01菌株毒力最强,5种孢子浓度15 d校正死亡率分别为52.4%、69.0%、76.2、92.9%、95.2%;LT₅₀分别为11.47 d、6.89 d、4.36 d、2.68 d、2.13 d;LC₅₀为7.39×10⁴个·mL^-1。Bb27和MaZPTP01菌株可应用于林间作进一步防治试验。更多还原

【Abstract】 Control effects of Beauveria bassiana and Metarhizium anisopliae to the larvae of Xyrosaria lichneuta were tested in laboratory, and all showed pathogenicity to Xyrosaria lichneuta Meyrick of Tripterygium wilfordii larvae.The data indicated that there were significantly difference at the toxicity to larve of Xyrosaria lichneuta Meyrick.Bb27 caused the greatest mortality in 3 strains of Beauveria bassiana.The revised mortality rate of 5 strains of spores concentration among 15 days were 58.3%,73.8%,85.7%,96.0%, 100%,and the LT₅₀ were 9.36 days,6.26 days,3.89 days,2.54 days,2.10 days,and the LC₅₀ was 4.87×10⁴ spores ? mL^-1. MaZPTP01 caused the greatest mortality in 3 strains of Metarhizium anisopliae.The revised mortality rate of 5 strains of spores concentration among 15 days were 52.4%,69.0%,76.2%,92.9%,95.2%,and the LT₅₀ were 11.47 days,6.89 days,4.36 days, 2.68 days,2.13 days,and the LC₅₀ was 7.39×10⁴ spores ? mL^-1.The result showed that Bb27 and MaZPTPOl could control this pest in the field.更多还原