| Title: | Comparison of Attraction and Trapping Capabilities of Bucket- and Delta-Style Traps With Different Pheromone Emission Rates for Gypsy Moths (Lepidoptera: Erebidae): Implications for Understanding Range of Attraction and Utility in Surveillance |
| Author(s): | Carde RT; Bau J; Elkinton JS; |
| Address: | "Department of Entomology, University of California, Riverside, CA. Department of Biosciences, University of Vic-Central University of Catalonia, Vic, Barcelona, Spain. Department of Environmental Conservation, University of Massachusetts, Amherst, MA" |
| ISSN/ISBN: | 1938-2936 (Electronic) 0046-225X (Linking) |
| Abstract: | "Delta- and bucket-style (Universal or Unitrap) traps baited with 1 standard survey lure and 1/3 and 3 lures were compared for their attractiveness and trapping efficiencies for gypsy moth, Lymantria dispar L. (Lepidoptera: Erebidae), males. With bucket traps, the numbers of males attracted to within 2 m of traps and the proportion of these actually captured were identical among the three doses although the percentage of attracted males actually captured in bucket traps was low, less than 15%. A three-lure delta trap attracted about 70% more males than traps with the two lower doses. Capture efficiencies were above 80% for 1/3- and one-lure traps and about 60% for traps baited with three lures. The number of males captured in delta traps was equivalent for the three doses although our observations also suggest that a delta trap baited with three lures drew males from a wider range than lower dose lures and therefore would be a more sensitive trap for detecting incipient populations. We also noted that males tended to arrive in clusters, suggesting that attraction over moderate distances requires periods when the wind direction is fairly constant. This observation coupled with the great variability in the direction of male arrival to the traps also suggests that important changes in the area of influence of the plume are driven in such forested areas by slower but greater changes in wind direction compared with open habitats" |
| Keywords: | "Animals Dose-Response Relationship, Drug Insect Control/instrumentation/*methods Male Massachusetts Moths/*physiology Pheromones/*pharmacology Sex Attractants/*pharmacology (7R, 8S)-cis-7, 8-epoxy-2-methyloctadecane Lymantria dispar disparlure;" |
| Notes: | "MedlineCarde, Ring T Bau, Josep Elkinton, Joseph S eng Research Support, Non-U.S. Gov't England 2017/12/28 Environ Entomol. 2018 Feb 8; 47(1):107-113. doi: 10.1093/ee/nvx185" |
