Bulletin of Insectology (2005) 58, 119-124

Edison Pasqualini, Silvia Schmidt, Isabel Espiñha, Stefano Civolani, Antonio De Cristofaro, Fabio Molinari, Michela Villa, Edith Ladurner, Benoit Sauphanor and Claudio Ioriatti (2005)
Effects of the kairomone ethyl (2E, 4Z)-2,4-decadienoate (DA 2313) on the oviposition behaviour of Cydia pomonella: preliminary investigations
Bulletin of Insectology 58 (2), 119-124
Abstract: In 2002, 2003, and 2004, semi-field trials on the impact of ethyl (2E, 4Z)-2,4-decadienoate (pear ester), a pear volatile, on the oviposition behaviour of Cydia pomonella L. (Lepidoptera Tortricidae) were conducted. The effects of pear ester applications on oviposition (No. eggs laid) and egg distribution (distance of the eggs from the fruit) were investigated on two crops (apple and pear) on early and late varieties in different phenological stages (fruitlet stage and ripe-fruit stage). The pear ester did not affect the number of eggs laid by C. pomonella females, but it significantly affected egg distribution, favouring oviposition at greater distance from the fruit on late varieties in the ripe fruit stage. In some cases, the pear ester disrupted the oviposition behaviour of C. pomonella females (host location disruption), which could result in higher larval mortality (direct effect) and improve the efficacy of larvicidal insecticides (indirect effect).
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Full text of article
Database assignments for author(s): Edison Pasqualini, Antonio De Cristofaro, Claudio Ioriatti, Stefano Civolani, Fabio Molinari

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
general biology - morphology - evolution

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Cydia pomonella	Apple (Malus)
	Cydia pomonella	Pear (Pyrus)