Environmental Entomology (1995) 24, 1135-1143

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Heather J. McAuslane, Freddie A. Johnson, Daniel L. Colvin and Brett Sojack (1995)
Influence of foliar pubescence on abundance and parasitism of Bemisia argentifolii (Homoptera: Aleyrodidae) on soybean and peanut
Environmental Entomology 24 (5), 1135-1143
Abstract: Field experiments were established in 1993 and 1994 to investigate population levels and parasitism of silverleaf whitefly, Bemisia argentifolii Bellows and Perring, on 3 near-isolines of soybean, Glycine max L., that varied in hairiness, and on 1 cultivar of peanut, Arachis hypogaea L. The original intent was to determine whether soybean could be used as a trap crop to reduce whitefly infestation in peanut. In 1993, we found that whiteflies preferred soybean to the extent that they laid few eggs on peanut in the trap crop experiment. Substantially greater populations, of immature whiteflies occurred in pubescent and hirsute soybean than in either glabrous soybean or peanut. In 1994, only pubescent soybean supported substantially greater number of whiteflies than glabrous soybean, however, all soybean genotypes supported more whiteflies than peanut. In 1993, whiteflies were less often parasitized on hirsute soybean than on peanut or on the other soybean genotypes. In 1994, however, parasitism differed significantly among the 4 plant types on only 2 dates. In both years, parasitoid species were distributed differently on the 4 plant types. Encarsia nigricephala Dozier and Encarsia transvena Timberlake more commonly parasitized whitefly on peanut and on glabrous soybean than on the hairy soybean genotypes. Conversely, Encarsia pergandiella Howard and Eretmocerus nr. californicus Howard more often parasitized whitefly on the hairy soybean genotypes.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Heather J. McAuslane

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
environment/habitat manipulation


Pest and/or beneficial records:

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


Bemisia tabaci biotype MEAM1 Soybean (Glycine max)
Bemisia tabaci biotype MEAM1 Groundnut/peanut (Arachis hypogaea)
Encarsia pergandiella (parasitoid) Bemisia tabaci biotype MEAM1 Soybean (Glycine max)
Encarsia sophia (parasitoid) Bemisia tabaci biotype MEAM1 Soybean (Glycine max)
Encarsia sophia (parasitoid) Bemisia tabaci biotype MEAM1 Groundnut/peanut (Arachis hypogaea)
Encarsia nigricephala (parasitoid) Bemisia tabaci biotype MEAM1 Soybean (Glycine max)
Encarsia nigricephala (parasitoid) Bemisia tabaci biotype MEAM1 Groundnut/peanut (Arachis hypogaea)