Comparison of Insecticide Susceptibility between Fall Webworm, Hyphantria cunea (Lepidoptera: Arctiidae) and Its Parasitoid Fly, Exorista japonica (Diptera: Tachinidae)

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Abstract

The insecticide susceptibility of the Fall Webworm, Hyphantria cunea and its parasitoid fly, Exorista japonica, was studied. Larvae of H. cunea were hardly susceptible to organophosphorus insecticides, such as fenitrothion (LD50=> 100 μg/larva) and isoxathion (LD50=54 μg/larva). However, adults of H. cunea were quite susceptible to fenitrothion (LD50=1.4 μg/male and 2.2 μg/female). Adults of E. japonica emerging from pupa of H. cunea were very susceptible to fenitrothion (LD50 =0.082 μg/adult). The results suggest that a judicious choice of insecticide is necessary to control H. cunea, if E. japonica is used as a biological control agent, too.

Original languageEnglish
Pages (from-to)167-170
Number of pages4
JournalJapanese Journal of Applied Entomology and Zoology
Volume42
Issue number3
DOIs
Publication statusPublished - 1998 Jan 1
Externally publishedYes

Keywords

  • Exorista japonica
  • Hyphantria cunea
  • Insecticide
  • Parasitoid

ASJC Scopus subject areas

  • Insect Science

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