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REARING METHODS AND BIOLOGICAL NOTES FOR SEVEN SPECIES OF EUROPEAN AND JAPANESE PARASITES OF THE LARCH CASEBEARER (LEPIDOPTERA: COLEOPHORIDAE)

Published online by Cambridge University Press:  31 May 2012

R. B. Ryan
R. B. Ryan
Affiliation:
Forestry Sciences Laboratory, Pacific Northwest Forest and Range Experiment Station, USDA-FS, Corvallis, Oregon 97331
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Abstract

Types of cages and methods for rearing, collecting, holding, and scheduling adult emergence are described for hymenopterous parasites of Coleophora laricella (Hübner). Methods differ depending on whether the parasite attacks needlemining larvae, e.g. Agathis pumila (Ratz.) and Diadegma laricinellum (Strobl), or casebearing larvae, e.g. Chrysocharis laricinellae (Ratz.), Elachertus argissa (Walk.), Necremnus metalarus (Walk.), Dicladocerus westwoodii Westw., and Dicladocerus japonicus Yshm. Biological details of the parasites pertinent to laboratory rearing include stage attacked, developmental times, adult longevity, diapause, mode of reproduction, progeny sex ratios, and suggested parasite/host ratios.

Résumé

Des cages, et des méthodes d’élevage, de collection, de maintien, et de surveillance de l’émergence des adultes sont décrites pour les hyménoptères parasites de Coleophora laricella (Hübner). Les méthodes décrites diffèrent selon que le parasite s’attaque aux larves alors qu’elles sont mineuses, ex. Agathis pumila (Ratz.) et Diadegma laricinellum (Strobl.), ou aux larves porte-cases, ex. Chrysocharis laricinellae (Ratz.), Elachertus argissa (Walk.), Necremnus metalarus (Walk.), Dicladocerus westwoodii Westw., et Dicladocerus japonicus Yshm. Les caractéristiques biologiques des parasites qui sont pertinentes à leur élevage en laboratoire sont entre autres le stade d’hôte attaqué, les temps de développement, la longévité adulte, la diapause, le mode de reproduction, le rapport des sexes dans la progéniture, et les rapports numériques parasites/hôtes suggérés.

Type
Articles
Information
The Canadian Entomologist , Volume 112 , Issue 12 , 01 December 1980 , pp. 1239 - 1248
Copyright
Copyright © Entomological Society of Canada 1980

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