Pathogenicity of three Japanese strains of entomopathogenic fungi against the silverleaf whitefly, Bemisia argentifolii

概要

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The pathogenicity of Japanese strains of the entomopathogenic fungi, Paecilomyces fumosoroseus, Beauveria bassiana and Aschersonia aleyrodis, against the nymphs of the silverleaf whitefly, Bemisia argentifolii, was compared with that of strains from foreign commercial products, including P. fumosoroseus, B. bassiana and Verticillium lecanii. With a single dose of 6×10^8 conidia/ml, the highest mortality was observed for the Japanese strain P. fumosoroseus PF3110, although it did not cause significantly different mortality than the strains from foreign commercial products. The LC_<50> values of the native strain were determined on various days after inoculation and the LT_<50> values were determined at different doses. The native strain, P. fumosoroseus PF3110, has potential as a microbial control agent against this whitefly.
2005-02-25