Epizootiology of Nomuraea rileyi (Farlow) Samson in Field Populations of Helicoverpa (=Heliothis) armigera (Hubner) in Relation to Three Host Plants

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Authors

  • Division of Entomology and Nematology, Indian Institute of Horticultural Research, Bangalore 560 089 ,IN
  • Biological Control Centre, National Centre for Integrated Pest Management, Bellary Road, H.A Farm Post, Bangalore-560 024 ,IN

DOI:

https://doi.org/10.18311/jbc/1989/4213

Keywords:

Nomuraea rileyi, Helicoverpa armigera, Epizootiology.

Abstract

Epizootlological studies of Nomuraea rileyi in field population of Helicoverpa (=Heliothis) armigera occurring on tomato, field beans and vegetable pigeonpea, grown under uniform field conditions, showed higher rates of fungal infection in H. armigera found on vegetable pigeonpea (37%) than on field beans (28.2%) and tomato (20.5%). Further, H. armigera larvae collected from these host plants and reared on the respective host plants under laboratory conditions also revealed the same trend.