The Canadian Entomologist (2010) 142, 481-488

Fabio Molinari, Gianfranco Anfora, Silvia Schmidt, Michela Villa, Claudio Ioriatti, Edison Pasqualini and Antonio De Cristofaro (2010)
Olfactory activity of ethyl (E,Z)-2,4-decadienoate on adult oriental fruit moths
The Canadian Entomologist 142 (5), 481-488
Abstract: We investigated whether or not pear ester (ethyl (E,Z)-2,4-decadienoate) attracted adult oriental fruit moths, Cydia molesta (Busck) (Lepidoptera: Tortricidae). The electro-antennographic responses of C. molesta to pear ester were recorded and dose-response curves calculated. In laboratory bioassays, the attractiveness of different dosages was assessed in a dual-choice olfactometric arena. The responses of virgin males and females to pear ester in the presence and absence of pear (Pyrus communis L.), peach (Prunus persica (L.) Batsch.), and apple (Malus ×domestica Borkh.) (Rosaceae) shoots were evaluated. Electroantennographic recordings demonstrated that both male and female C. molesta were able to detect the pear ester. In our bioassay, however, pear ester readily attracted males but attracted very few females. The response of males was dose-dependent and they preferred pear ester over apple-and pear-shoot volatiles, whereas no apparent preference between pear ester and peach-shoot volatiles was observed. Therefore, this kairomonal compound could be more effective in attracting C. molesta when applied in orchards of secondary host plants, like apple or pear, than in peach orchards.
(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): Fabio Molinari, Claudio Ioriatti, Antonio De Cristofaro, Edison Pasqualini

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Grapholita molesta	Apple (Malus)
	Grapholita molesta	Peach/nectarine (Prunus persica)
	Grapholita molesta	Pear (Pyrus)