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Control of the banana weevil borer cosmopolites sordidus germar 1824 coleoptera curculionidae by the entomopathogenic fungi beauveria bassiana bals. vuill. and metarhizium anisopliae metschn. sorok. hyphomycetes



Control of the banana weevil borer cosmopolites sordidus germar 1824 coleoptera curculionidae by the entomopathogenic fungi beauveria bassiana bals. vuill. and metarhizium anisopliae metschn. sorok. hyphomycetes



Anais da Sociedade Entomologica do Brasil 18(SUPPL): 33-42



The efficiency of dosages and isolates of Beauveria bassiana (Bals.) Vuill. and Metarhizium anisopliae (Metschn.) Sorok. was evaluated in laboratory conditions (temperature 28 .+-. 3.degree. C and relative humidity 90 .+-. 5%). The fungus B. bassiana was isolated from Ligyrus sp. (Coleoptera, Scarabaeidae) and Diatraea saccharalis (Lepidoptera, Pyralidae) and M. anisopliae was isolated from Ligyrus sp. and Deois flavopicta (Homoptera, Cercopidae). The dosages used were 1,000 and 2,000 viable spores/insect with five replications. The inoculation of the spores were made by powdering on 15 insects that consisted of the experimental plot. The results showed that B. bassiana (isolated from Ligyrus sp.) in both dosages was the best treatment, causing high mortality of the insects. These treatments were more efficient on insects showing micelial growth.

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Accession: 007159718

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