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Pest Manag Sci

Title:		Mating disruption of Coleophora deauratella (Lepidoptera: Coleophoridae) using laminate flakes in red clover seed production fields
Author(s):		Mori BA; Evenden ML;
Address:		"Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada"
Journal Title:		Pest Manag Sci
Year:		2015
Volume:		20140929
Issue:		8
Page Number:		1149 - 1157
DOI:		10.1002/ps.3898
ISSN/ISBN:		1526-4998 (Electronic) 1526-498X (Linking)
Abstract:		"BACKGROUND: The red clover casebearer, Coleophora deauratella, is a significant pest in red clover (Trifolium pratense) seed production regions throughout the world. The internal feeding nature of C. deauratella larvae makes infestations difficult to control with insecticide. We test the ability of Hercon Disrupt Micro-Flakes((R)) releasing the complete pheromone blend of C. deauratella to disrupt communication and mating in red clover seed production fields. RESULTS: Initial small-plot (0.25 ha) trials found a significant reduction (93.6 +/- 2.9%) of male C. deauratella captured in pheromone-treated plots compared with untreated controls. Subsequent large-plot (5 ha) mating disruption trials found a significant reduction (72.3 +/- 5.7%) in male C. deauratella captured in pheromone-treated plots compared with untreated control plots over the growing season. Furthermore, larval numbers were significantly reduced and seed yield was increased in pheromone-treated plots compared with untreated control plots. In a concurrent small-plot (0.0625 ha) trial with various flake densities, disruption increased with pheromone flake density, and the resulting graphical disruption profiles matched the theoretical predictions of mating disruption by competitive attraction. CONCLUSION: Pheromone-mediated mating disruption with laminate flakes has the potential to suppress C. deauratella populations and may help to reduce damage even at high pest densities. (c) 2014 Society of Chemical Industry"
Keywords:		"Alberta Animals Insect Control/*methods Male Moths/*drug effects Pheromones/*pharmacology Sex Attractants/*pharmacology Sexual Behavior, Animal/*drug effects Trifolium/growth & development Coleophoridae competitive attraction laminate flakes mating disrup;"
Notes:		"MedlineMori, Boyd A Evenden, Maya L eng Research Support, Non-U.S. Gov't England 2014/09/03 Pest Manag Sci. 2015 Aug; 71(8):1149-57. doi: 10.1002/ps.3898. Epub 2014 Sep 29"