Ethyl propionate: Synergistic kairomone for african palm weevil,Rhynchophorus phoenicis L. (Coleoptera: Curculionidae)
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| Autores: | , , , , , , , , |
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| Formato: | artículo original |
| Fecha de Publicación: | 1994 |
| Descripción: | Small trunk pieces of a freshly felled 10-year-old oil palm,Elaeis quineensis (Jacq.), were placed in a modified Nalgene desiccator, and volatiles captured for six days on Porapak Q. Gas chromatographic (GC) analysis of Porapak-Q-trapped volatiles with both flame ionization (FID) and electroantennographic detection (EAD) using male or femaleR. phoenicis antennae revealed several EAD-active compounds. They were identified as: ethyl acetate, ethyl propionate, isobutyl propionate, ethyl butyrate, and ethyl isobutyrate. In field experiments in the La Me Research Station, Côte d'Ivoire, ethyl propionate (50 mg/24 hr) but not all esters combined (50 mg/24 hr each) significantly increased capture ofR. phoenicis in pheromone-baited (3 mg/24 hr) traps. One kilogram of 1- to 3-day-old palm tissue was significantly more effective than ethyl propionate in enhancing pheromone attraction. Superior attraction of palm tissue may be attributed to additional as yet unknown semiochemicals. Alternatively, release rates and/or ratios of synthetic volatiles differed from those of palm tissue at peak attraction. |
| País: | Kérwá |
| Institución: | Universidad de Costa Rica |
| Repositorio: | Kérwá |
| OAI Identifier: | oai:kerwa.ucr.ac.cr:10669/29137 |
| Acceso en línea: | http://link.springer.com/article/10.1007/BF02059585 https://hdl.handle.net/10669/29137 |
| Palabra clave: | Coleoptera Kairomones 3-methyl-octan-4-ol ethyl butyrate ethyl isobutyrate Rhynchophorus Phoenicis Elaeis Quineensis Oil Palm Synergism Palm Weevil Palm Volatiles Host Selection Pimary Attraction Aggregation Pheromone Ethyl Acetate Ethyl Propionate Isobutyl Propionate |