U.S. Department of Agriculture: Agricultural Research Service, Lincoln, Nebraska
Document Type
Article
Date of this Version
2005
Citation
Agricultural and Forest Entomology (2005) 7, 79–86
Abstract
1 The attractiveness of pitfall traps baited with a synthetic host volatile attractant to colonizing adult Colorado potato beetle, Leptinotarsa decemlineata (Say) was evaluated in a field setting.
2 Significantly more postdiapause, colonizing adult L. decemlineata were captured in baited than unbaited pitfall traps.
3The potential for this synthetic kairomone to enhance the efficacy of trap cropping as a management tool was evaluated by comparing conventionally managed plots with like-sized plots bordered by either attractant-treated trap crop or untreated trap crop.
4 More postdiapause, colonizing adults, egg masses and small larvae were present in attractant-treated trap crops than in untreated trap crops.
5 There were no significant differences in egg mass and small larvae densities between plots bordered by attractant-treated trap crops and conventionally managed plots, but there were significantly fewer large larvae and adult beetles in conventionally managed plots.
6 Plant canopy area of conventionally managed plots was significantly greater than in plots bordered by either type of trap crop.
7 Yields for conventionally managed plots and plots bordered by attractanttreated trap crops did not differ, and less insecticide (44%) was applied to plots bordered by attractant-treated trap crops.
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This article is a U.S. government work, and is not subject to copyright in the United States.