Horizontal transmission and effect of the temperature in pathogenicity of Beauveria bassiana against Diatraea saccharalis (Lepidoptera: Crambidae)

Brazilian Archives of Biology and Technology

Virgínia Michelle Svedese²  Elza Áurea De Luna Alves Lima²  Ana Lúcia Figueiredo Porto¹ 

[1] ,Universidade Federal de Pernambuco Departamento de Micologia

关键词: Sugarcane borer;    Lepidoptera;    entomopathogenic fungus;    biological control;    autodissemination;   

DOI  :  10.1590/S1516-89132013000300009

来源: SciELO

【 摘 要 】

The aim of this work was to evaluate the effect of temperature on the pathogenicity of Beauveria bassiana against Diatraea saccharalis and evaluate the horizontal transmission capacity among the sugarcane borer larvae. The strains were most pathogenic at 26ºC, followed by 32ºC than at 20ºC, with respective mortalities of 100, 50 and 30.3%. The lethal time was also affected by the temperature, with the shortest LT 50 observed at 26ºC (2.2 days) and the longest at 20ºC (16.2 days). The URM2915 strain appeared most effective in all the experiments as having potential for deployment in biological control programs for the sugarcane borer. Results in horizontal transmission of B. bassiana showed that this procedure could also be adopted as control strategy for the sugarcane borer.

【 授权许可】

CC BY-NC   
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