Biological Control of Pieris Rapae in New England: Host Suppression and Displacement of Cotesia Glomerata by Cotesia Rubecula (Hymenoptera: Braconidae) (Report)
Florida Entomologist 2008, March, 91, 1
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Publisher Description
ABSTRACT A survey of the imported cabbageworm, Pieris rapae (Lepidoptera: Pieridae), in cole crops in Massachusetts found that a Chinese strain of Cotesia rubecula (Hymenoptera: Braconidae), released in 1988, has spread and become the dominant parasitoid of this pest in central and western Massachusetts, with an average of 75% parasitism. The previously dominant parasitoid of this host, Cotesia glomerata (Hymenoptera: Braconidae), has been displaced and is now present only at trace levels (1% of total parasitism).
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