Pest Management Science (2015) 71, 1605-1610

Salvatore Guarino, Stefano Colazza, Ezio Peri, Paolo Lo Bue, Maria Pia Germanà, Tatiana Kuznetsova, Galina Gindin and Victoria Soroker (2015)
Behaviour-modifying compounds for management of the red palm weevil (Rhynchophorus ferrugineus Oliver)
Pest Management Science 71 (12), 1605-1610
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.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Victoria Soroker, Stefano Colazza, Galina Gindin

Research topic(s) for pests/diseases/weeds:
control - general
pheromones/attractants/traps

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Rhynchophorus ferrugineus		Italy
	Rhynchophorus ferrugineus		Israel