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J Econ Entomol

Title:		"Avoiding Unwanted Vicinity Effects With Attract-and-Kill Tactics for Harlequin Bug, Murgantia histrionica (Hahn) (Hemiptera: Pentatomidae)"
Author(s):		Wallingford AK; Kuhar TP; Weber DC;
Address:		"Virginia Tech Entomology, Blacksburg, VA. USDA-ARS, Invasive Insect Biocontrol and Behavior Laboratory, BARC-West Building, Beltsville, MD"
Journal Title:		J Econ Entomol
Year:		2018
Volume:		111
Issue:		4
Page Number:		1780 - 1787
DOI:		10.1093/jee/toy109
ISSN/ISBN:		1938-291X (Electronic) 0022-0493 (Linking)
Abstract:		"In the development of an attract-and-kill approach for the management of harlequin bug (HB), Murgantia histrionica (Hahn), we evaluated attraction and retention of HB by pheromone-baited traps in the field. In release-recapture and on-farm experiments, traps with collard plants with lures-containing HB aggregation pheromone (murgantiol = 10,11-epoxy-1-bisabolen-3-ol) arrested and retained more HB than traps with either plant or lure. In order to avoid unwanted vicinity effects (increased feeding injury to neighboring crop plants due to halo or spillover effects), we also investigated two methods of retaining HB that were attracted to traps: a systemic toxicant (neonicotinoid applied to the trap plant as a drench) and a contact toxicant (long-lasting insecticidal netting [LLIN] with incorporated pyrethroid). More HB adults and more HB-feeding injury were observed on collard plants in the vicinity of lures compared with those neighboring lures in combination with a systemic toxicant. This difference indicates that improvements to trap retention acted to mitigate spillover effects, thereby avoiding unwanted vicinity effects. We also conducted laboratory assays in order to estimate the length of exposure to LLIN necessary to knock down HB adults and nymphs, calculating a knockdown time (KDT50) of 78.3, 2.6, and 2.1 s for females, males, and nymphs, respectively"
Keywords:		Animals Female *Heteroptera Insect Control *Insecticides Male Nymph Pheromones Stereoisomerism Brassicaceae attract-and-kill halo effect murgantiol spillover effect;
Notes:		"MedlineWallingford, Anna K Kuhar, Thomas P Weber, Donald C eng England 2018/06/19 J Econ Entomol. 2018 Aug 3; 111(4):1780-1787. doi: 10.1093/jee/toy109"