Responses of Adult Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae) to Light and Combinations of Attractants and Light |
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Authors: | Kishan R Sambaraju Thomas W Phillips |
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Institution: | (1) Department of Entomology and Plant Pathology, Oklahoma State University, 127 Noble Research Center, Stillwater, OK 74078, USA;(2) Present address: Department of Entomology, Kansas State University, 123 W. Waters Hall, Manhattan, KS 66506, USA |
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Abstract: | Responses of adult Indianmeal moth, Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae) to light alone and to a combination of attractant(s) and green/UV lights were studied.
When P. interpunctella adults were given a choice between dark areas and areas illuminated with UV, green, or white light, they rested preferentially
on surfaces in the illuminated areas. UV light elicited the strongest of the positive phototactic responses. Light traps were
not as effective as traps baited with pheromones or food lures in capturing adult moths, and combining green or UV light with
these attractants did not significantly increase the trap catches. Gravid females required a period of darkness to realize
maximum oviposition, and illumination above 8 lx during the scotophase of a 24-hr light–dark cycle inhibited oviposition. |
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Keywords: | Oviposition behavior orientation behavior sex pheromone host attractants photoperiod |
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