Journal of Entomological Science (2005) 40, 211-221

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Suzanne J. Wold-Burkness, W.D. Hutchison, Jana C. Lee, R.L. Hines, P.C. Bolin and G.E. Heimpel (2005)
A long-term survey of parasitoid species composition and parasitism of Trichoplusia ni (Lepidoptera: Noctuidae), Plutella xylostella (Lepidoptera: Plutellidae), and Pieris rapae (Lepidoptera: Pieridae) in Minnesota cabbage
Journal of Entomological Science 40 (2), 211-221
Abstract: Field studies were conducted near Rosemount, MN, during the years 1991-1994, 1996-1997, and 1999-2003, to assess the diversity of and parasitism by larval and pupal parasitoids of cabbage looper, Trichoplusia ni (Hübner), imported cabbageworm, Pieris rapae (L.), and diamondback moth, Plutella xylostella (L.). Species composition, parasitism rate, and species abundance (Hill's N1) were determined for each pest species. Voria ruralis (Fallen), Copidosoma floridanum (Ashmead), and Compsilura concinnata (Meigen) were the dominant parasitoids of T. ni; Phryxe pecosensis (Townsend), Cotesia glomerata (L.), and Pteromalus puparum (L.) are the dominant parasitoids of P. rapae; and Diadegma insulare (Cresson) is the dominant parasitoid of P. xylostella. In addition, the first records of the introduced parasitoid, C. concinnata, parasitizing T ni and P. rapae, and Cotesia rubecula (Marshall) parasitizing P. rapae are documented for Minnesota.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): William (Bill) D. Hutchison, Jana C. Lee

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
surveys/distribution/isolation


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Plutella xylostella Cabbage (Brassica oleracea) U.S.A. (mid N)
Trichoplusia ni Cabbage (Brassica oleracea) U.S.A. (mid N)
Pieris rapae Cabbage (Brassica oleracea) U.S.A. (mid N)
Compsilura concinnata (parasitoid) Trichoplusia ni Cabbage (Brassica oleracea) U.S.A. (mid N)
Compsilura concinnata (parasitoid) Pieris rapae Cabbage (Brassica oleracea) U.S.A. (mid N)
Diadegma insulare (parasitoid) Plutella xylostella Cabbage (Brassica oleracea) U.S.A. (mid N)
Cotesia glomerata (parasitoid) Pieris rapae Cabbage (Brassica oleracea) U.S.A. (mid N)
Cotesia rubecula (parasitoid) Pieris rapae Cabbage (Brassica oleracea) U.S.A. (mid N)
Voria ruralis (parasitoid) Trichoplusia ni Cabbage (Brassica oleracea) U.S.A. (mid N)
Phryxe pecosensis (parasitoid) Pieris rapae Cabbage (Brassica oleracea) U.S.A. (mid N)
Copidosoma floridanum (parasitoid) Trichoplusia ni Cabbage (Brassica oleracea) U.S.A. (mid N)
Pteromalus puparum (parasitoid) Pieris rapae Cabbage (Brassica oleracea) U.S.A. (mid N)