Author
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Fisher, James |
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Submitted to: Entomology International Congress
Publication Type: Abstract Only Publication Acceptance Date: 6/24/2004 Publication Date: 8/17/2004 Citation: Fisher, J.R. 2004. Use of acoustics in detection and studying activity of larvae of a soil nursery pest, otiorhynchus sulcatus f. (coleoptera:curculionidae). Entomology International Congress. Interpretive Summary: Technical Abstract: The black vine weevil, Otiorhynchus sulcatus F., is a ubiquitous pest of ornamentals and small fruits throughout the Northern hemisphere, particularly in areas where the environment is mediated by maritime and large inbound lake air flows N of 40° latitude. Primary damage to these crops is caused by the larvae that feed from late summer until the next spring on roots. Estimated damage in the state of Oregon is > $3 million/year. There are limited windows for control of these pests and a zero tolerance for plants that contain the pest. Detection for the past 150+ years has been by digging and sifting, limiting sampling quantity and efficiency. A portable hand-held acoustical detection device has been developed that can examine up to 15 container plants per hour. Pitfalls, successes, and the feasibility of the use of acoustic detection for the European and North American nursery industry for this and other root feeding insects will be discussed. Information on the use of acoustics for activity studies of the larvae will also be discussed. |
