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Study on Virulence of Beauveria bassiana MZ050724 to Larvae of Ostrinia furnacalis

Li ZhengYue

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Abstract

The virulence of Beauveryia bassiana MZ050724 to 3rd and 4th larvae of Ostrinia furnacalis under five different concentration from 4.0×104-4.0×108 spores/mL was studied.Results indicated that the virulence of Beauveryia bassiana MZ050724 to larvae of Ostrinia furnacalis was high.The adjusted accumulative mortality of 3rd larvae was 88.65 %,LC50 was(2.195±0.135)×104 spores/mL,LT50 was(4.30±0.16)d;and adjusted accumulative mortality to 4th larvae was 85.75 %,LC50 was(4.362±0.088)×105 spores/mL,LT50 was(4.77±0.11)d.The control effect of Beauveryia bassiana MZ050724 against 3rd larvae of Ostrinia furnacalis was higher than that of it to 4th larvae.

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What this paper is about

The virulence of Beauveryia bassiana MZ050724 to 3rd and 4th larvae of Ostrinia furnacalis under five different concentration from 4.0×104-4.0×108 spores/mL was studied.Results indicated that the virulence of Beauveryia bassiana MZ050724 to larvae of Ostrinia furnacalis was high.The adjusted accumulative mortality of 3rd larvae was 88.65 %,LC50 was(2.195±0.135)×104 spores/mL,LT50 was(4.30±0.16)d;and adjusted accumulative mortality to 4th larvae was 85.75 %,LC50 was(4.362±0.088)×105 spores/mL,LT50 was(4.77±0.11)d.The control effect of Beauveryia bassiana MZ050724 against 3rd larvae of Ostrinia furnacalis was higher than that of it to 4th larvae.

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Available abstract

The virulence of Beauveryia bassiana MZ050724 to 3rd and 4th larvae of Ostrinia furnacalis under five different concentration from 4.0×104-4.0×108 spores/mL was studied.Results indicated that the virulence of Beauveryia bassiana MZ050724 to larvae of Ostrinia furnacalis was high.The adjusted accumulative mortality of 3rd larvae was 88.65 %,LC50 was(2.195±0.135)×104 spores/mL,LT50 was(4.30±0.16)d;and adjusted accumulative mortality to 4th larvae was 85.75 %,LC50 was(4.362±0.088)×105 spores/mL,LT50 was(4.77±0.11)d.The control effect of Beauveryia bassiana MZ050724 against 3rd larvae of Ostrinia furnacalis was higher than that of it to 4th larvae.

Key concepts: Ostrinia furnacalis, Bassiana, Beauveria bassiana, Virulence, Larva, Spore, Biology, Veterinary medicine

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