Title: | Identification of the sex pheromone of the mealybug Dysmicoccus grassii Leonardi |
Author(s): | de Alfonso I; Hernandez E; Velazquez Y; Navarro I; Primo J; |
Address: | "Ecologia y Proteccion Agricola, S.L., Apartado de Correos 50, Carlet 46240, Spain. igdeal@epa-ecologia.com" |
ISSN/ISBN: | 1520-5118 (Electronic) 0021-8561 (Linking) |
Abstract: | "Studies about the sex pheromone of the mealybug Dysmicoccus grassii , a main pest of Canary Islands banana cultivars, showed strong evidence that (-)-(R)-lavandulyl propionate and acetate in a 6:1 ratio are principal components of it. Volatile collection and GC-MS analysis from aeration of virgin females allowed the structural elucidation of the compounds. The activity and stereochemistry of both substances were established by means of relative attraction of mealybug males to synthetic standards in competitive Petri dish bioassays. (R)-Lavandulyl propionate induced a stronger attractive effect when compared to (R)-lavandulyl acetate. The attractiveness of the mixture of the two compounds at the original source ratio showed no statistically significant difference from that of the sum of each of the single compounds alone, suggesting that both components are not synergistic but additive" |
Keywords: | Acetates/chemistry/pharmacology Animals Drug Synergism Female Gas Chromatography-Mass Spectrometry Hemiptera/*chemistry/physiology Insect Hormones/analysis/chemistry/pharmacology Male Molecular Structure Monoterpenes/analysis/chemistry/pharmacology Sex At; |
Notes: | "Medlinede Alfonso, Ignacio Hernandez, Estrella Velazquez, Yisell Navarro, Ismael Primo, Jaime eng Research Support, Non-U.S. Gov't 2012/11/22 J Agric Food Chem. 2012 Dec 5; 60(48):11959-64. doi: 10.1021/jf304065d. Epub 2012 Nov 20" |