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Effectiveness of entomopathogenic nematodes in the control of Cydia pomonella larvae in Northern Italy

Curto, G.; Reggian, A.; Vergnani, S.; Caruso, S. and Ladurner, E. (2008) Effectiveness of entomopathogenic nematodes in the control of Cydia pomonella larvae in Northern Italy. In: Boos, Markus (Ed.) Ecofruit - 13th International Conference on Cultivation Technique and Phytopathological Problems in Organic Fruit-Growing: Proceedings to the Conference from 18thFebruary to 20th February 2008 at Weinsberg/Germany, pp. 271-276.

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Summary

Since 2006, a large scale research on the effectiveness of entomopathogenic nematodes
(EPN) in the control of codling moth (CM), Cydia pomonella, overwintering larvae has
been performed on about 35 ha of pear orchards per year in Emilia-Romagna, Northern
Italy. Steinernema carpocapsae and Steinernema feltiae activity was checked after spray
applications of EPNs to the trunk and branches. In 2006, the treatment was applied either
in spring or in autumn at different doses, before CM pupation; in 2007 the EPN treatment
was applied only in autumn at 1.5 x 109 I.J. ha –1. Every year it was distributed by means of
a conventional mist blower. The larval mortality was assessed directly on sentinel larvae in
card boards on the trunks and indirectly on the eggs laid by the females of the first CM
generation in spring. Moreover, each year, a trial was performed applying only S.
carpocapsae on sentinel larvae with the aim of testing this nematode at suitable
temperatures but at different water volumes.
The CM sentinel larvae were effectively parasitized after autumnal EPN application.
Moreover, the egg assessment demonstrated a good decrease in CM population in spring
2007, when EPNs had been applied at the best weather conditions (t° 12-14 °C and rain)
in the previous autumn.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Codling moth, Cydia pomonella, biological control, entomopathogenic nematodes, Steinernema.
Subjects: Crop husbandry > Crop health, quality, protection
Crop husbandry > Production systems > Fruit and berries
Research affiliation: International Conferences > 2008: Ecofruit
Related Links:http://www.ecofruit.net
Deposited By: Tagung, Ecofruit
ID Code:13711
Deposited On:24 Jul 2008
Last Modified:12 Apr 2010 07:37
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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