The Presence, Acceptability and Suitability of Ichneumonid Wasp, Eriborus argenteopilosus Cameron (Hymenoptera:Ichneumonidae) on the Different Larval Stages of Cotton Bollworm, Helicoverpa armigera Hubner (Lepidoptera:Noctuidae)
Leonardo T. Pascua1 and Miriam E. Pascua2
1Cotton Research Center, Cotton Development Administration
Batac, Ilocos Norte
2College of Agriculture and Forestry, Mariano Marcos State University,
Batac, Ilocos Norte
corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
ABSTRACT
The preference, acceptability and suitability of Eriborus argenteopilosus Cameron on different larval stages of Helicoverpa armigera Hubner were studied.
First (2-3 day old) and second instar larvae were the most preferred and accepted, while the second instar larvae were the most suitable host for E. argenteopilosus. Third and older instar larvae of H. armigera showed aggressive behavior, hence, hindering parasitization.
INTRODUCTION
The success of survival of progeny after egg deposition depends on the selection of suitable host. Doutt (1959) enumerated four steps for a successful parasitoid-host relationship: host habitat selection, host location, host acceptance . . . .
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