Screening of Highly Pathogenic Strains of Beauveria bassiana against Sesamia inferens

doi:10.16409/j.cnki.2095-039x.2015.02.019

Abstract

Abstract: Sesamia inferens is an important insect pest in the southern rice-growing region of China. In order to find the efficient biocontrol agent against S. inferens, 10 Beauveria bassiana strains with good cultural characters were obtained from dead overwintering S. inferens larvae, strains with high virulence against S. inferens were screened in laboratory. Strain SI027, with high virulence against S. inferens was obtained. LC₅₀ of SI027 on the 3rd instars of S. inferens was 5.28×10⁵ conidia/mL, which was detected 10 d after treatment. The LT₅₀values on the 3rd instars of S. inferens which were treated with 1×10⁶, 1×10⁷ and 1×10⁸ conidia/mL of SI027 conidial suspension were 7.26 d, 4.65 d and 3.38 d, respectively.

CLC Number:

S476.12

HU Benjin, XU Lina, HU Fei, ZHOU Ziyan, LI Changchun. Screening of Highly Pathogenic Strains of Beauveria bassiana against Sesamia inferens[J]. , DOI: 10.16409/j.cnki.2095-039x.2015.02.019 .

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Screening of Highly Pathogenic Strains of Beauveria bassiana against Sesamia inferens

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