Bengtsson, Marie
- Department of Crop Science, Swedish University of Agricultural Sciences
Abstract
European corn borer females Ostrinia nubilalis Hubner (Lepidoptera, Pyralidae) exhibited upwind flight to three main host plants, corn Zea mays, hemp Cannabis sativa and hop Humulus lupulus, in a laboratory wind tunnel. Within a 15-min experimental period, 22.9% to 24.3% mated females flew toward and landed on a single potted corn plant. A potted hemp plant attracted 25.7% females. In a choice test, significantly more females landed on a hemp plant than on an adjacent corn plant. In contrast, paprika Capsicum annumn did not elicit attraction. Headspace collections from corn, hemp, and hop contained 18 compounds which consistently elicited a response from female antennae. Four of these, (Z)-3-hexenyl acetate,)beta-caryophyllene, (E)-beta-farnesene, and (E,E)-alpha-farnesene co-occurred in three host plants studied. A 4-component blend of these compounds did not attract female moths in the wind tunnel. Availability of a wind tunnel bioassay is, however, a step toward the identification of plant volatiles guiding long-range attraction of gravid corn borer females.
Keywords
Ostrinia nubilalis; Pyralidae, Lepidoptera, plant volatile compounds, host plant, wind tunnel; Cannabis sativa; Humulus lupuli; Zea mays
Published in
Environmental Entomology
2006, volume: 35, number: 5, pages: 1238-1243
Publisher: ENTOMOLOGICAL SOCIETY AMERICA
SLU Authors
Witzgall, Peter
- Department of Crop Science, Swedish University of Agricultural Sciences
- Department of Crop Science, Swedish University of Agricultural Sciences
UKÄ Subject classification
Environmental Sciences and Nature Conservation
Food Science
Agricultural Science
Publication identifier
- DOI: https://doi.org/10.1603/0046-225X(2006)35[1238:FTROZS]2.0.CO;2
Permanent link to this page (URI)
https://res.slu.se/id/publ/9797