Florida Entomologist (1997) 80, 451-456

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J.C. Medal, A.J. Mueller, T.J. Kring and E.E. Gbur Jr. (1997)
Predation of Spissistilus festinus (Homoptera:Membracidae) nymphs by hemipteran predators in the presence of alternative prey
Florida Entomologist 80 (4), 451-456
Abstract: The feeding preferences of Geocoris punctipes (Say) and Nabis roseipennis Reuter were studied in the laboratory. Female adult predators were exposed for 24h to three Spissistilus festinus (Say) nymphal densities and two Pseudoplusia includens (Walker) larval densities. Feeding responses of the predators when exposed to second and third S. festinus nymphal stages and second instar P. includens and/or Helicoverpa zea (Boddie) as a food choice also were studied. Predation of S. festinus nymphs by G. punctipes and N. roseipennis did not differ significantly in the presence of P. includens and/or H. zea larvae as alternative prey. Geocoris punctipes and N. roseipennis caused mortality of S. festinus nymphs of 33 to 83% and 33 to 100%, respectively, even in the presence of the lepidopterous larvae.
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Full text of article
Database assignments for author(s): Julio C. Medal, Timothy J. Kring

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


Pest and/or beneficial records:

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


Spissistilus festinus
Geocoris punctipes (predator) Spissistilus festinus
Nabis roseipennis (predator) Spissistilus festinus