Neotropical Entomology (2006) 35, 231-240

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Cristhiane Rohde, Luis F.A. Alves, Pedro M.O.J. Neves, Sérgio B. Alves, Everton R.L. da Silva and José E.M. de Almeida (2006)
Seleção de isolados de Beauveria bassiana (Bals.) Vuill. e Metarhizium anisopliae (Metsch.) Sorok. contra o cascudinho Alphitobius diaperinus (Panzer) (Coleoptera: Tenebrionidae)
[Selection of Beauveria bassiana (Bals.) Vuill. and Metarhizium anisopliae (Metsch.) Sorok. isolates against Alphitobius diaperinus (Panzer) (Coleoptera: Tenebrionidae)]
Neotropical Entomology 35 (2), 231-240
Abstract: This study was carried out to evaluate entomopathogenic fungi isolates as microbial control agents of the lesser mealworm, Alphitobius diaperinus (Panzer). Larvae and adults were inoculated with conidial suspension of 99 isolates of Beauveria bassiana (Bals.) Vuill. and Metarhizium anisopliae (Metsch.) Sorok. (105 to 109 conidia/ml). Vegetative growth on culture media and sporulation on culture media, cooked rice and lesser mealworm cadavers were also evaluated. Isolates of B. bassiana were more effective than the M. anisopliae isolates and larvae were more susceptible than adults. The isolates UNIOESTE 04 and UNIOESTE 02 were originally obtained from adults of the lesser mealworm and were the most efficient isolates. In addition, UNIOESTE 04 showed high level of sporulation on different culture media and is considered a potential useful tool to lesser mealworm control.

Este trabalho teve por objetivo selecionar isolados de fungos entomopatogênicos, visando sua utilização no controle do cascudinho, Alphitobius diaperinus (Panzer). Larvas e adultos foram inoculados com suspensões de conídios de 99 isolados de Beauveria bassiana (Bals.) Vuill. e Metarhizium anisopliae (Metsch.) Sorok. em concentrações variáveis de 105 a 109 conídios/ml. Avaliou-se também o crescimento vegetativo em meio-de-cultura, produção de conídios em colônias, arroz e em cadáveres de larvas e adultos do inseto. Os isolados de B. bassiana foram mais eficientes que os isolados de M. anisopliae e as larvas foram mais suscetíveis que os adultos. Os isolados UNIOESTE 04 e UNIOESTE 02, ambos obtidos em cadáveres de cascudinho, foram mais eficientes. Além disso, UNIOESTE 04 apresentou elevada produção em diferentes meios-de-cultura, evidenciando o seu potencial para aplicação em aviários no controle do cascudinho.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
Full text of article
Database assignments for author(s): Pedro M.O.J. Neves, Sérgio Batista Alves

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
evaluation - screening - selection
rearing/culturing/mass production


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Alphitobius diaperinus
Beauveria bassiana (entomopathogen) Alphitobius diaperinus
Metarhizium anisopliae (entomopathogen) Alphitobius diaperinus