SciELO - Scientific Electronic Library Online

vol.9 número3Performance and carcass characteristics of broiler chickens with different growth potential and submitted to heat stressEffects of prebiotics and probiotics on the colonization and immune response of broiler chickens challenged with Salmonella Enteritidis índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados




Links relacionados


Brazilian Journal of Poultry Science

versión impresa ISSN 1516-635Xversión On-line ISSN 1806-9061


CHERNAKI-LEFFER, AM; SOSA-GOMEZ, DR  y  ALMEIDA, LM. Selection for entomopathogenic fungi and LD50 of Metarhizium anisopliae (Metsch.) Sorok. for the Lesser Mealworm Alphitobius diaperinus (Panzer) (Coleoptera: Tenebrionidae). Rev. Bras. Cienc. Avic. [online]. 2007, vol.9, n.3, pp.187-191. ISSN 1516-635X.

The pathogenicity of insect-pathogenic hyphomycetous isolates to the lesser mealworm Alphitobius diaperinus (Panzer) was tested in this study. Thirty isolates of Beauveria bassiana (Balsamo) Vuillemin, Paecilomyces amoenoroseus (Hennings), P. fumosoroseus (Wize) Brown & Smith, P. lilacinus (Thom) Samson, P. tenuipes (Petch) Samson, Metarhizium anisopliae (Metschnikoff) Sorokin, and M. anisopliae var. acridum were initially screened by sprinkling dry conidia onto adult A. diaperinus or by allowing adults to walk on Petri dishes with sporulating fungal isolates. The two most virulent isolates, CNPSo-Ma352 (M. anisopliae) and CNPSo-Ma356 (M. anisopliae), killed 30% and 26.7% of the dry-conidia treated adults, respectively. These two isolates were selected for LD50 bioassays. LD50 of CNPSo-Ma352 was 4.5 x 104 conidia per larva, and 2.1 x 105 conidia per adult, and for strain CNPSo-Ma356, LD50 was 2.2 x 104 conidia per larva and 1.3 x 105 conidia per adult. Larvae were 5-6 times more susceptible than adults. A larger number of conidia required to cause 50% mortality in insect evaluates, suggesting the reduced susceptibility of A. diaperinus to entomopathogenic fungi. Nevertheless, these and other strains of fungus offer an alternative method for controlling of lesser mealworm in poultry houses when associated to integrated management.

Palabras clave : Alphitobius diaperinus; bioassays; biological control; entomopathogenic fungi.

        · texto en Inglés     · Inglés ( pdf )


Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons