Journal of Economic Entomology (2021) 114, 2108-2120
Willem G. van Herk, Emily Lemke, Gerhard Gries, Regine Gries, Jacqueline M. Serrano, Haley Catton, Kevin Wanner, Peter J. Landolt, W. Rodney Cooper, Scott Meers, Atoosa Nikoukar, Jocelyn L. Smith, Santosh K. Alamsetti and Frank E. Etzler (2021)
Limoniic acid and its analog as trap lures for pest Limonius species (Coleoptera: Elateridae) in North America
Journal of Economic Entomology 114 (5), 2108-2120
Abstract: Four species of Limonius wireworms (Coleoptera: Elateridae), L. californicus, L. canus, L. infuscatus and L. agonus, are serious crop pests in North America. Limoniic acid, (E)-4-ethyloct-4-enoic acid, has been reported as a sex pheromone component of female L. californicus and L. canus, and a sex attractant for male L. infuscatus. In the same study, both limoniic acid and the analog (E)-5-ethyloct-4-enoic acid were highly attractive in field experiments. Moreover, six carboxylic acids in headspace volatiles of Limonius females elicited responses from male antennae but were not tested for behavioral activity. Here, we report trap catch data of Limonius spp. obtained in field experiments at 27 sites across North America. All four Limonius species were attracted to limoniic acid and to the analog but not to the carboxylic acids. Adding these carboxylic acids to limoniic acid, or to the analog, reduced its attractiveness. In dose–response studies, trap lures containing 0.4 mg or 4 mg of limoniic acid afforded large captures of L. californicus and L. infuscatus. Neither limoniic acid nor the analog were deterrent to other elaterid pest species. The broad attractiveness of limoniic acid to Limonius spp., and its non-deterrent effect on heterogeners, may facilitate the development of generic pheromone-based monitoring and management tools for multiple click beetle species.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Willem G. van Herk, Gerhard Gries, Haley A. Catton, Peter J. Landolt, W. Rodney Cooper
Research topic(s) for pests/diseases/weeds:
pheromones/attractants/traps
Pest and/or beneficial records:
| Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant.
|
|---|---|---|---|---|
| Limonius canus | ||||
| Limonius californicus | ||||
| Limonius infuscatus | ||||
| Limonius agonus |
