AI Article Synopsis
- Geranyl butyrate (GB) and (E, E)-farnesyl butyrate (FB) were identified as the primary sex pheromone components in female Agriotes brevis click beetles.
- Polyethylene vial dispensers containing a specific mixture of these pheromones effectively attracted large numbers of beetles and remained effective for up to 73 days in the field.
- The selective capture of A. brevis over A. sputator suggests that FB contributes to reproductive isolation, and trap designs that allowed crawling and flying insects were more effective earlier in the season.
Article Abstract
Geranyl butyrate (GB) and (E, E)-farnesyl butyrate (FB) were identified in the pheromone gland extract of females of the click beetle, Agriotes brevis (Candeze) (Coleoptera: Elateridae) as the major sex pheromone components. Polyethylene vial dispensers containing 20-200 mg of a 1:1 mixture caught high numbers of beetles. Captures did not decrease even after 73 days of field exposure of dispensers. At sites where both Agriotes sputator L. and A. brevis were present, the above baits were selectively catching only A. brevis, despite the fact that GB is also the main pheromone component of A. sputator, suggesting that FB has a role in reproductive isolation. In the early part of the season, traps into which the insects could both crawl and fly captured more A. brevis than designs where the insects could only fly in. Trap design was not important later in the season. This indicates the need for future development of a trap suitable for use throughout the whole season.
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| http://dx.doi.org/10.1023/a:1019984714858 | DOI Listing |
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