Christian Nansen, cnansen@montana.edu1, Thomas W. Phillips, tomp@okstate.edu2, Charles Koneman2, Jack Dillwith2, Kishan Sambaraju, n/a2, and Manuel Campos2. (1) Montana State University, Department of Entomology, 333 Leon Johnson Hall, P.O. Box 173020, Bozeman, MT, (2) Oklahoma State University, Department of Entomology and Plant Pathology, 127 Noble Research Center, Stillwater, OK
Recent work has exploited the sex pheromone system and a newly developed female attractant for pest management of the Indianmeal moth, Plodia interpuntella. Studies were conducted with the Indianmeal moth, Plodia interpunctella, aimed at suppressing populations with various strategies that utilized the major component of its together with an insecticidal bait. Combinations of the sex pheromone, (Z, E)-9,12-tetradecadienyl acetate, referred to as “ZETA”, with permethrin were incorporated into Last CallTM gel from IPM Technologies (Portland, OR) as an attracticide. Subtle contact of males with the gel containing 3-18% permethrin caused a significant reduction in mating and killed male moths within 24 hours. Males displayed significantly higher levels of anemotactic flight and contact with the attracticide gel in a wind tunnel when the ZETA concentration was 0.16% compared to 0.32%, and there were no signs of repellency to permethrin concentration within a range of 0-18% in the gel. Attracticide gel suppressed oviposition in experimental rooms, but it was ineffective when the moth density exceeded one male-female pair per 10 m3. Additional studies were conducted using various active ingredients as contact insecticides, and also the geometry of a large-surface killing station was explored as an alternative to gel dots. Mating disruption with high doses of ZETA only was effective at reducing reproduction in controlled experiments, and field studies show promise for this application. Recent development of a female attractant for Indianmeal moth motivated studies on the behavior of host finding in female and on applications like mass trapping and attract-and-kill formulations.
Species 1: Lepidoptera Pyralidae
Plodia interpunctella (Indianmeal Moth)
Keywords: stored-product insects, chemical ecology
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