BA 2:10 - Loureiro & Moino Jr. 2007 - Abstract  

Pathogenicity of Entomopathogenic Fungi to Orius insidiosus (Say) (Hemiptera: Anthocoridae)

Abstract

The effect of Beauveria bassiana (strain IBCB 66), Metarhizium anisopliae (strain IBCB 121), Paecilomyces fumosoroseus (strain IBCB 141) and Lecanicillium (= Verticillium) lecanii (strain JAB 02) on Orius insidiosus adults were studied in acclimatized room at 25±1ºC, 70±10% RH and 12 hours fotophase. The predators were left in Petri dishes (9cm diameter) with filter paper treated with 1 mL of conidia suspensions (1.0 × 106; 0.5 × 107; 1.0 × 107; 0.5 × 108 e 1.0 × 108 conidia/mL). In the control sterilized water was added (1 mL) in the filterpaper. The plates were covered with plastic film and a small portion of hidrophilic cotton was placed in its interior and maintained at the same temperature and fotophase condictions. Sterilized eggs of Anagasta kuehniella were added each two days for the insects feeding. The fungi were pathogenic to the predator and M. anisopliae was more virulent caused lethal effects quickly than the other tested fungi. 

KEYWORDS - Biological control, microbial control, greenhouse crops.


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