A laboratory assessment of the potential of Beauveria bassiana (Balsamo) Vuillemin as a biocontrol agent of Corcyra cephalonica Stainton (Lepidoptera: Pyralidae)

Autor: Abhinay Thakur, Sanehdeep Kaur, Mamta Rajput
Rok vydání: 2014
Předmět:
Zdroj: Journal of Stored Products Research. 59:185-189
ISSN: 0022-474X
DOI: 10.1016/j.jspr.2014.08.004
Popis: Corcyra cephalonica Stainton (Lepidoptera: Pyralidae) is a wide spread pest of stored grains and responsible for considerable damage in godowns and warehouses. Beauveria bassiana (Balsamo) Vuillemin, the most common and ubiquitous fungal entomopathogen is known to have high potential for the control of insects belonging to various orders. To evaluate the pathogenicity of B. bassiana against C . cephalonica , sorghum grains were treated with three conidial concentrations of B. bassiana i.e. 1.49 × 10 5 , 4.05 × 10 6 , 2.02 × 10 8 spores/ml. The highest concentration was found to be the most effective. It induced significantly higher larval mortality. Adverse effects such as reduced adult emergence and longevity of C. cephalonica were also observed when the grains were treated with B. bassiana . Significantly lesser number of adults emerged from pupae, when shorghum grains were treated with 2.02 × 10 8 spores/ml. The adverse effects were also exhibited as malformed adults that lived for a short period. Overall study showed that B. bassiana gave effective control of C. cephalonica and thus may play a pivotal role in the integrated pest management program.
Databáze: OpenAIRE