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J Chem Ecol

Title:		Activity of male pheromone of Melanesian rhinoceros beetle Scapanes australis
Author(s):		Rochat D; Morin JP; Kakul T; Beaudoin-Ollivier L; Prior R; Renou M; Malosse I; Stathers T; Embupa S; Laup S;
Address:		"INRA, Unite de Phytopharmacie et Mediateurs Chimiques, Centre de Versailles, France. rochatd@versailles.inra.fr"
Journal Title:		J Chem Ecol
Year:		2002
Volume:		28
Issue:		3
Page Number:		479 - 500
DOI:		10.1023/a:1014531810037
ISSN/ISBN:		0098-0331 (Print) 0098-0331 (Linking)
Abstract:		"Laboratory and field investigations were carried out to investigate the nature and role of the male pheromone emitted by the Dynast beetle Scapanes australis and to develop a mass trapping technique against this major coconut pest in Papua New Guinea. We report the biological data obtained from natural and synthetic pheromone, previously described as an 84:12:4 (w/w) mixture of 2-butanol (1), 3-hydoxy-2-butanone (2), and 2,3-butanediol (3). EAG recordings from natural and synthetic pheromone and a pitfall olfactometer were poorly informative. In contrast, extensive field trapping trials with various synthetic pheromone mixtures and doses showed that 1 and 2 (formulated in polyethylene sachets in 90:5 v/v ratio) were necessary and sufficient for optimum long-range attraction. Beetles were captured in traps baited with racemic 1 plus 2, with or without a stereoisomer mixture of 3 (2.5- to 2500-mg/day doses). Plant pieces, either sugarcane or coconut, enhanced captures by the synthetic pheromone, which was active alone. Traps with the pheromone caught both sexes in a 3:2 female-male ratio. A pheromone-based mass trapping led to the capture of 2173 beetles in 14 traps surrounding 40 ha of a cocoa-coconut plantation. The captures followed a log-linear decrease during the 125-week trapping program. The role of the male pheromone and its potential for crop protection are discussed"
Keywords:		Animals Butanols/*pharmacology Butanones/*pharmacology Butylene Glycols/*pharmacology Cocos Coleoptera/*physiology Female Insect Control Male Plant Extracts/pharmacology Sex Attractants/*pharmacology Smell;
Notes:		"MedlineRochat, Didier Morin, Jean-Paul Kakul, Titus Beaudoin-Ollivier, Laurence Prior, Robert Renou, Michel Malosse, Isabelle Stathers, Tanya Embupa, Sebastian Laup, Samson eng 2002/04/12 J Chem Ecol. 2002 Mar; 28(3):479-500. doi: 10.1023/a:1014531810037"