| Title: | Developing wax-based granule formulations for mating disruption of oriental beetles (Coleoptera: Scarabaeidae) in turfgrass |
| Author(s): | Behle RW; Cosse AA; Dunlap C; Fisher J; Koppenhofer AM; |
| Address: | "USDA-ARS-NCAUR, 1815 N. University Ave., Peoria, IL 61604, USA. robert.behle@ars.usda.gov" |
| DOI: | 10.1603/0022-0493-101.6.1856 |
| ISSN/ISBN: | 0022-0493 (Print) 0022-0493 (Linking) |
| Abstract: | "Oriental beetle, Anomala orientalis Waterhouse (Coleoptera: Scarabaeidae), is a pest of turfgrass that may be controlled by applications of synthetic pheromone (Z)-/ (E)-7-tetradecen-2-one to disrupt mating. Laboratory experiments were conducted to determine release profiles of pheromone from experimental wax-based granules, a proprietary wax granule, and rubber septa commonly used in pheromone traps. Rubber septa loaded with 10, 100, and 300 microg per septum provided steady rates of pheromone release (zero-order) over 4 wk of laboratory evaluation (total = 1.1, 9.0, and 26.9 microg/4 wk, respectively). Septa with 1,000 microg per septum had a significant decline in the rate of pheromone release for this 4-wk exposure time (total = 119 microg/4 wk). A large proprietary wax granule (44 mg per granule, 25% wt:wt pheromone) provided a steady rate of pheromone release (total = 2,347 microg/4 wk per granule). Experimental granules (16 mg per granule) made of soywax with higher pheromone loads (10% wt:wt) approached zero-order release (steady state) (total = 69 microg/4 wk per granule), whereas smaller granules (4 mg per granule) with less pheromone (0.1% wt:wt) provided first-order release profiles (decreasing rate with longer exposure time) (total = 0.35 microg/4 wk per granule). A field trial in turfgrass demonstrated the potential of selected granular formulations to provide effective mating disruption for up to 4 wk, as measured by pheromone trap shutdown. Documenting pheromone release profiles for these experimental granules and rubber septa provides valuable information that will support future field evaluations of mating disruption as a control strategy" |
| Keywords: | "Animals Coleoptera/*physiology Female Insect Control/instrumentation/*methods Ketones/administration & dosage/*pharmacology Linear Models Male Sex Attractants/administration & dosage/*pharmacology Sexual Behavior, Animal/*drug effects Waxes;" |
| Notes: | "MedlineBehle, R W Cosse, A A Dunlap, C Fisher, J Koppenhofer, A M eng Evaluation Study Research Support, Non-U.S. Gov't England 2009/01/13 J Econ Entomol. 2008 Dec; 101(6):1856-63. doi: 10.1603/0022-0493-101.6.1856" |
