Pathogenicity of Hyphomycetous Fungi Against Cyclocephala signaticollis

BERÓN, C. M.; DIAZ, B. M.

BIOCONTROL (DORDRECHT)

Kluwer Academic Publishers B. V.

Lugar: Dordrecht; Año: 2005 vol. 50 p. 143 - 150

1386-6141

Susceptibility of the white grub Cyclocephala signaticollis Burmeister (Coleoptera: Scarabaeidae: Dynastinae) larvae to seven isolates of Beauveria bassiana (Balsamo) Vuillemin, five of Metarhizium anisopliae (Metschnikoff) Sorokin and two of Paecilomyces lilacinus (Thom) Samson (Deuteromycotina: Hyphomycetes) was investigated. Among fourteen fungal isolates screened the most virulent was a B. Bassiana isolate (BB 53) that caused 70% mortality of third instar larvae in 40 days after inoculation at 1 x 108 conida/ml. Strains of M. anisopliae and P. lilacinus showed low efficacy or no virulence to the target host.