INFLUENCE OF HOST EGGS ON THE ECOTYPES OF THE EGG PARASITOID Trichogramma chilonis ISHII

M. GANESH KUMAR; P.C. SUNDARABABU; Y.S. JOHNSON THANGARAJ EDWARD AND C. GAILCE LEO JUSTIN

doi:https://doi.org/10.29321/MAJ.10.A01567

Madras Agricultural Journal

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INFLUENCE OF HOST EGGS ON THE ECOTYPES OF THE EGG PARASITOID Trichogramma chilonis ISHII

Author: M. GANESH KUMAR, P.C. SUNDARABABU, Y.S. JOHNSON THANGARAJ EDWARD AND C. GAILCE LEO JUSTIN,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 81, Issue: sep-sep,

DOI:https://doi.org/10.29321/MAJ.10.A01567

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Abstract

Six ecotypes of Trichogramma chilonis collected from Gudimangalam, Palladam, Udumalpet, Pongalur, Chingleput and Mettupalayam, were compared with the laboratory strain of the same species (Coimbatore). All the ecotypes were significantly superior to the laboratory strain in parasitizing the eggs of Corcyra cephalonica, Heliothis armigera and Spodoptera litura and showed a distinct preference for H. armigera eggs. The Palladam ecotype was able to withstand starvation to a maximum extent of 6.86 days.

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