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J Insect Sci

Title:		Field Evaluation of a Binary Sex Pheromone for Sweetpotato Vine Borer (Lepidoptera: Crambidae) in Hawaii
Author(s):		McQuate GT; Cosse A; Sylva CD; MacKay JA;
Address:		"USDA-ARS, Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center, Hilo, HI. USDA-APHIS-PPQ-CPHST Otis Lab, Buzzards Bay, MA"
Journal Title:		J Insect Sci
Year:		2019
Volume:		20190101
Issue:		1
Page Number:		-
DOI:		10.1093/jisesa/iez008
ISSN/ISBN:		1536-2442 (Electronic) 1536-2442 (Linking)
Abstract:		"The sweetpotato vine borer, Omphisa anastomosalis (Guenee), is a primarily Asian pest of sweetpotato, Ipomoea batatas L. Damage by O. anastomosalis infestation can cause root yield losses of 30%-50%. A binary sex pheromone for O. anastomosalis, consisting of Type I [(10E,14E)-10,14-hexadecadienal (E10,E14-16:Ald)] and Type II [(3Z,6Z,9Z)-3,6,9-tricosatriene (Z3,Z6,Z9-23:H)] components, was identified in Vietnam from extracts of female pheromone glands. A structurally similar Type II compound [(3Z,6Z,9Z)-3,6,9-docosatriene (Z3,Z6,Z9-22:H)], not recovered from female pheromone glands, was also found to synergize the attractiveness of the Type I component. Additional field work has been needed to determine whether these synergistic enhancements of attractiveness also occur in other parts of the geographical distribution of this moth species. Herein, results of studies are reported which document that both Z3,Z6,Z9-23:H and Z3,Z6,Z9-22:H also synergistically enhance male response to E10,E14-16:Ald in Hawaii sweetpotato field populations. Trap catch tends to be enhanced with increase of dose and lower Type I:Type II ratios. Among the compound doses and ratios tested, trap catch increased with the addition of the Type II component by over 13 times relative to traps baited with the Type I component alone, which significantly enhanced sweetpotato vine borer detection. Using a 2.0 mg: 4.0 mg Type I: Type II loading, there was continued catch over 12 wk, during which time the Type I component weathered at a faster rate than the Type II component. This binary sex pheromone seems to have promise for both monitoring and suppression of field populations of O. anastomosalis throughout its geographical range"
Keywords:		Aldehydes/*pharmacology Animals *Chemotaxis Female Hawaii Ipomoea batatas/growth & development Moths/*physiology Pheromones/*pharmacology Polyenes/*pharmacology Sex Attractants/*pharmacology;
Notes:		"MedlineMcQuate, Grant T Cosse, Allard Sylva, Charmaine D MacKay, Julia A eng 2019/02/13 J Insect Sci. 2019 Jan 1; 19(1):21. doi: 10.1093/jisesa/iez008"