Preference of Hyposoter didymator (Thunberg) to Spodoptera litura (Fabricius) on different host plants

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Authors

  • Division of Entomology and Nemotology, Indian Institute of Horticultural Research, Bangalore, 560 089 ,IN
  • Division of Entomology and Nemotology, Indian Institute of Horticultural Research, Bangalore, 560 089 ,IN
  • Division of Entomology and Nemotology, Indian Institute of Horticultural Research, Bangalore, 560 089 ,IN
  • Division of Entomology and Nemotology, Indian Institute of Horticultural Research, Bangalore, 560 089 ,IN

DOI:

https://doi.org/10.18311/jbc/1987/15419

Keywords:

Hyposoter didymator preference, Spodoptera litura.

Abstract

Preference of the exotic parasite Hyposoter didymator (Thunberg) to parasitise Spodoptera litura (Fabricius) feeding on 8 different host plants was studied in the laboratory. In a no-choice test, maximum perference was for host larvae on castor and beetroot, followed by tobacco cv. Xanthi, cauliflower, cowpea, okra and cabbage, larvae on tobacco cv. Jayashri remained Unparasitised in both nochoice and multi-choice tests. Per cent parasitism obtained on the host plants (except tobacco cv. Jayashri)by multi-choice test was statistically similar. Per cent adult emergence was higher on cabbage, cauliflower, castor and beetroot than on other host plants. However, the food plants of the host seemed to have no effect on the developmental time and sex ratio of the progeny.