Environmental Entomology (1985) 14, 722-725

D.W. Keever, R.T. Arbogast and M.A. Mullen (1985)
Population trends and distributions of Bracon hebetor Say (Hymenoptera: Braconidae) and lepidopterous pests in commercially stored peanuts
Environmental Entomology 14 (6), 722-725
Abstract: Naturally occurring insect populations were studied in a commercial warehouse containing farmers' stock peanuts. Precision of four different sampling/analysis methods, the temporal and spatial distribution patterns of Plodia interpunctella (Hübner) and Cadra cautella (Walker), and interactions between these moth species and the parasite Bracon hebetor Say were determined. Averaging two sampling units, each 21.6 cm square and 10.2 cm deep, yielded more precise data than taking one sampling unit 30.5 cm square and 10.2 cm deep; each technique involved the same total volume of peanuts. Moth populations had contagious distribution patterns and were more abundant on the side than the top (horizontal) surface of the peanut stack. B. hebetor appeared to greatly suppress moth populations, but not before peanuts were damaged.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Richard T. Arbogast, Michael A. Mullen

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Plodia interpunctella	Stored legumes	U.S.A. (SE)
	Cadra cautella	Stored legumes	U.S.A. (SE)
Habrobracon hebetor (parasitoid)	Plodia interpunctella	Stored legumes	U.S.A. (SE)
Habrobracon hebetor (parasitoid)	Cadra cautella	Stored legumes	U.S.A. (SE)