Environmental Entomology (1986) 15, 1032-1036

D.J. Rogers and M.J. Sullivan (1986)
Nymphal performance of Geocoris punctipes (Hemiptera: Lygaeidae) on pest-resistant soybeans
Environmental Entomology 15 (5), 1032-1036
Abstract: Performance of Geocoris punctipes (Say) nymphs was studied on the pest-resistant soybean, Glycine max (L.) Merrill, genotypes PI 171451 and PI 229358, and pest-susceptible 'Bragg' and 'Govan'. G. punctipes nymphal growth rate decreased when the insect food was velvetbean caterpillar (VBC), Anticarsia gemmatalis Hübner, reared on 'Bragg', PI 229358, or PI 171451. Mortality of nymphs increased when they fed on PI 171451- or PI 229358-reared VBC larvae. Direct effects of plant food as detached leaflets included increased nymphal development time and increased nymphal mortality. Development time of nymphs was increased on a diet that included PI 171451 leaf and PI 171451-reared soybean looper, Pseudoplusia includens (Walker).
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): John Rogers

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Anticarsia gemmatalis	Soybean (Glycine max)	U.S.A. (SE)
	Chrysodeixis includens	Soybean (Glycine max)	U.S.A. (SE)
Geocoris punctipes (predator)	Anticarsia gemmatalis	Soybean (Glycine max)	U.S.A. (SE)
Geocoris punctipes (predator)	Chrysodeixis includens	Soybean (Glycine max)	U.S.A. (SE)