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ARS Home » Pacific West Area » Maricopa, Arizona » U.S. Arid Land Agricultural Research Center » Pest Management and Biocontrol Research » Research » Publications at this Location » Publication #201331
Title: An immunological approach for quantifying predation rates on glassy-winged sharpshooter

Author
item Hagler, James
item GROVES, RUSSELL - UNIV OF WI MADISON WI
item JOHNSON, MARSHALL - UNIV OF CA RIVERSIDE CA
item MORGAN, DAVID - CDFA, RIVERSIDE CA

Submitted to: CDFA Pierce's Disease Control Program Research Symposium
Publication Type: Proceedings
Publication Acceptance Date: 11/27/2006
Publication Date: 11/27/2006
Citation: Hagler, J.R., Groves, R., Johnson, M.W., Morgan, D. 2006. An immunological approach for quantifying predation rates on glassy-winged sharpshooter. CDFA Pierce's Disease Control Program Research Symposium, Nov 27-29, 2006, San Diego, CA, pp. 70-72.

Interpretive Summary: The gut contents of 376 individual predators were assayed for glassy-winged sharpshooter (GWSS) remains using a multitude of ELlSAs designed to detect predation on various GWSS life stages. We found that almost 10% of the predators examined contained GWSS remains in their guts. We recorded 10, 17, and 20 predation events on the GWSS egg, nymph, and adult stages, respectively. Of the predators examined in this study, Collops vittatus (20.6%) and Hippodamia convergens (16.7%) had the highest percentage of individuals positive for GWSS remains. Approximately 10% of five of the other predator species and none of the earwigs tested contained GWSS remains.

Technical Abstract: The gut contents of 376 individual predators were assayed for glassy-winged sharpshooter (GWSS) remains using a multitude of ELlSAs designed to detect predation on various GWSS life stages. We found that almost 10% of the predators examined contained GWSS remains in their guts. We recorded 10, 17, and 20 predation events on the GWSS egg, nymph, and adult stages, respectively. Of the predators examined in this study, Collops vittatus (20.6%) and Hippodamia convergens (16.7%) had the highest percentage of individuals positive for GWSS remains. Approximately 10% of five of the other predator species and none of the earwigs tested contained GWSS remains.