Journal of Medical Entomology (1992) 29, 974-979

Theodore G. Andreadis and Merrily A. Gere (1992)
Laboratory evaluation of Acanthocyclops vernalis and Diacyclops bicuspidatus thomasi (Copepoda: Cyclopidae) as predators of Aedes canadensis and Ae. stimulans (Diptera: Culicidae)
Journal of Medical Entomology 29 (6), 974-979
Abstract: Predatory effectiveness of two vernal-pool copepods, Acanthocyclops vernalis (Fischer) and Diacyclops bicuspidatus thomasi (Forbes), was assessed against cohabiting larvae of Aedes canadensis (Theobold) and Aedes stimulans (Walker) in laboratory bioassays. D. b. thomasi did not exhibit predatory behavior toward first instars, even when both organisms were confined in 35-mm wells for 7 d and alternative food sources were not available. A. vernalis did feed on early instars, but its effectiveness was significantly influenced by the presence of alternate food, the size of the container, and the size and age of the larval prey. Results strongly suggest that in a comparatively unrestricted natural vernal-pool habitat where an abundance of other food sources are available, neither copepod species plays a major role in reducing larval mosquito populations.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Theodore G. Andreadis

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Aedes canadensis
	Aedes stimulans
Acanthocyclops vernalis (predator)	Aedes canadensis		U.S.A. (NE)
Acanthocyclops vernalis (predator)	Aedes stimulans		U.S.A. (NE)
Diacyclops thomasi (predator)	Aedes canadensis		U.S.A. (NE)
Diacyclops thomasi (predator)	Aedes stimulans		U.S.A. (NE)