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J Chem Ecol

Title:		"Sex pheromone components and control of the citrus pock caterpillar, Prays endocarpa, found in the Mekong Delta of Vietnam"
Author(s):		Vang le V; Do ND; An le K; Son PK; Ando T;
Address:		"College of Agriculture and Applied Biology, Can Tho University, Can Tho City, Vietnam. lvvang@ctu.edu.vn"
Journal Title:		J Chem Ecol
Year:		2011
Volume:		20101121
Issue:		1
Page Number:		134 - 140
DOI:		10.1007/s10886-010-9883-2
ISSN/ISBN:		1573-1561 (Electronic) 0098-0331 (Linking)
Abstract:		"The citrus pock caterpillar, Prays endocarpa (Yponomeutidae; Praydinae), is a pest of pomelo (Citrus grandis L.) in Vietnam. Gas chromatography-mass spectrometry analyses of pheromone gland extracts from female moths identified three monoenyl compounds, (Z)-7-tetradecenal (Z7-14:Ald), (Z)-7-tetradecenyl acetate (tentatively identified, Z7-14:OAc), and (Z)-7-tetradecen-1-ol (Z7-14:OH), in a ratio of about 10:3:10. In the field, traps baited with synthetic Z7-14:Ald (0.5 mg) caught male P. endocarpa. The other two compounds, either alone or when added to Z7-14:Ald, did not elicit increases in trap catch (relative to the appropriate treatment). Synthetic Z7-14:Ald was used to monitor and control this species in pomelo orchards in Vinh Long Province. Monitoring revealed that adults were present throughout the year with discernible peaks in December, March, and April. A mass-trapping trial, using 20 traps in a 0.1 ha pomelo orchard, effectively suppressed fruit damage to levels similar to that achieved by an insecticide (Karate 2.5EC). Mating disruption trials, using polyethylene-tube dispensers, each filled with 80 mg of Z7-14:Ald at a rate of 200 or 400 dispensers/ha, also controlled damage by this pest to levels below that achieved by an insecticide treatment. This work demonstrates the potential for pheromone-based control of this pest in Vietnam"
Keywords:		"Animals Gas Chromatography-Mass Spectrometry Male Moths/*chemistry/physiology Sex Attractants/*chemistry Sexual Behavior, Animal Vietnam;"
Notes:		"MedlineVang, Le Van Do, Nguyen Duc An, Le Ky Son, Pham Kim Ando, Tetsu eng 2010/11/26 J Chem Ecol. 2011 Jan; 37(1):134-40. doi: 10.1007/s10886-010-9883-2. Epub 2010 Nov 21"