Studies on the Dose-Mortality Relationship Between the Entomofungal Pathogen Beauveria bassiana (Bals.) Vuillemin and Heliothis armigera Hubner (Lepidoptera: Noctuidae)


Abstract

Beauveria bassiana (Bals.) Vuillemin was pathogenic to all the stages of Heliothis armigera Hubner Inflicting 60-100 and 100% mortality respectively, to the larval Instars I-V and the eggs at 1.0 × 107 conidia/ml. Pupal mortality was 60% at 1.0 × 109 conldla/ml and 80% mortality was observed in the prepupae and thc adults at 1.0 × 1010 conldla/ml with an incubation period ranging from 2-14 days.

Keywords

Beauveria bassiana, Heliothis armigera, Dose-Mortality Relationship.

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