| Title: | Behaviour-modifying compounds for management of the red palm weevil (Rhynchophorus ferrugineus Oliver) |
| Author(s): | Guarino S; Colazza S; Peri E; Bue PL; Germana MP; Kuznetsova T; Gindin G; Soroker V; |
| Address: | "Dipartimento di Scienze Agrarie e Forestali, Universita degli Studi di Palermo, Palermo, Italy. Istituto per la Protezione Sostenibile delle Piante (IPSP), Sesto Fiorentino, Florence, Italy. Volcani Centre, Agricultural Research Organisation, Bet Dagan, Israel" |
| ISSN/ISBN: | 1526-4998 (Electronic) 1526-498X (Linking) |
| Abstract: | "BACKGROUND: Populations of red palm weevil (RPW), a severe pest of palms in Mediterranean countries, might be limited by semiochemical-based behaviour-disrupting methods. We evaluated the effects of electroantennogram (EAG)-active plant volatiles on the behaviour of RPWs from Italy and Israel. In field experiments, alpha-pinene, citronellol, geraniol, citral and 1-octen-3-ol were tested for their ability to disrupt attraction to pheromone-kairomone and molasses baited traps. Those that were found to be disruptive in the field were evaluated in a laboratory choice bioassay in individual cages for their effect on RPW female feeding and oviposition. RESULTS: Field experiments showed reduced captures in traps loaded with geraniol (-57%), 1-octen-3-ol (-50%) or alpha-pinene (-45% to -60%); captures in citronellol- or citral-loaded traps did not differ from control. In laboratory experiments, 1-octen-3-ol was the most potent behaviour-modifying compound, eliciting a significant/marginally significant reduction in both feeding and oviposition at the lowest dose tested in both populations. Geraniol generally caused a strong reduction in feeding and oviposition at each dose tested (Israel), or at the highest dose (Italy). alpha-Pinene caused some reduction in feeding activity at the highest dose tested (Italy), but no consistent repellency (Israel). CONCLUSION: Field and laboratory data suggest the potential for the use of 1-octen-3-ol, geraniol and alpha-pinene for RPW population management" |
| Keywords: | "Acyclic Monoterpenes Animals Arecaceae/*parasitology Arthropod Antennae/physiology Behavior, Animal/drug effects Bicyclic Monoterpenes Electrophysiological Phenomena Feeding Behavior/drug effects Female Insect Control/methods Israel Italy Male Monoterpene;" |
| Notes: | "MedlineGuarino, Salvatore Colazza, Stefano Peri, Ezio Bue, Paolo Lo Germana, Maria Pia Kuznetsova, Tatiana Gindin, Galina Soroker, Victoria eng Research Support, Non-U.S. Gov't England 2014/12/20 Pest Manag Sci. 2015 Dec; 71(12):1605-10. doi: 10.1002/ps.3966. Epub 2015 Jan 20" |
