Host recognition by the gypsy moth [Lymantria dispar] [Lep.: Lymantriidae] hyperparasite,Eurytoma appendigaster [Hym.: Eurytomidae] of cocoons ofCotesia melanoscela [Hym.: Braconidae] |
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Authors: | Ronald M Weseloh |
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Affiliation: | (1) Department of Entomology, Connecticut Agricultural Experiment Station, 06504 New Haven, Connecticut |
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Abstract: | Artificial and modified natural hosts were exposed to females of the gypsy moth Lymantria dispar (L.)] hyperparasite,Eurytoma appendigaster (Swederus), to investigate its host recognition behavior on the primary host, which are cocooned larvae of the gypsy moth
parasite,Cotesia melanoscela (Ratzeburg). Material(s) which caused drilling behavior by the hyperparasite on host cocoons were extracted with both polar
and non-polar solvents. However, cocoons washed with large volumes of solvent still caused substantial drilling activities
by females, suggesting that additional cues may be important. Results suggest that host recognition in this hyperparasite
involves a variety of host characteristics.
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Keywords: | Cotesia melanoscela Eurytoma appendigaster Lymantria dispar host selection hyperparasite |
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