We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Plant volatiles moderate response to aggregation pheromone in Colorado potato beetle.
- Authors
Dickens, J. C.
- Abstract
The orientation of the Colorado potato beetle, Leptinotarsa decemlineata, to a male-produced aggregation pheromone, ( S)-3,7-dimethyl-2-oxo-oct-6-ene-1,3-diol, a three-component plant attractant blend [comprised of ( Z)-3-hexenyl acetate + (±)-linalool + methyl salicylate], and other potato volatiles (nonanal and 2-phenylethanol) were tested. All compounds were previously shown to be active in coupled gas chromatography/electroantennogram experiments. Both the three-component plant attractant blend and 2-phenylethanol were attractive to adult beetles. While male beetles oriented preferentially to both plant attractants vs. a control, females showed little preference. Combining the plant attractants with the pheromone resulted in sexually dimorphic responses similar to those seen with either plant attractant alone. Addition of nonanal abolished the sexually dimorphic response to the pheromone + 2-phenylethanol blend; the new three-component blend was attractive to both sexes. In both laboratory bioassays and field experiments, a combination of the pheromone + the three-component plant attractant was preferred over the plant attractant alone. Thus, it seems likely that combinations of pheromone + plant volatiles may be the most efficacious for field use.
- Subjects
BEETLES; COLORADO potato beetle; LEPTINOTARSA; PHEROMONES; SEX recognition (Zoology); ANIMAL courtship; SEX (Biology); CHROMATOGRAPHIC analysis; ANALYTICAL chemistry
- Publication
Journal of Applied Entomology, 2006, Vol 130, Issue 1, p26
- ISSN
0931-2048
- Publication type
Article
- DOI
10.1111/j.1439-0418.2005.01014.x