Use of pheromone traps to suppress populations of Scolytus multistriatus (Marsham) (Coleoptera: Scolytidae) in three isolated communities of elms |
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Authors: | TD Paine MC Birch JC Miller |
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Institution: | Department of Entomology, University of California, Davis, CA 95616 U.S.A. |
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Abstract: | The technique of mass trapping as a pest management tool was evaluated for its potential in reducing populations of Scolytus multistriatus. More than two million beetles were caught on traps baited with a synthetic attractant composed of both aggregation pheromones and host tree volatiles. Trends in trap catches over a period of 4 years (1976–1979) in three small isolated towns of similar size and with a similar number of elms, suggest that there was little or no reduction of the beetle population. Patterns in the number of beetles captured and the dispersion of trap catches indicate that pheromonebaited traps may be deployed to help identify local infestations and to focus sanitation efforts. |
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