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Autumn applications of sulphur – a new approach to control the pear leaf blister mite Eriophyes pyri

Daniel, Claudia; Linder, Christian and Wyss, Eric (2006) Autumn applications of sulphur – a new approach to control the pear leaf blister mite Eriophyes pyri. [Herbstapplikationen mit Schwefel – eine neue Möglichkeit zur Bekämpfung der Birnenpockenmilbe Eriophyes pyri.] In: Boos, Markus (Ed.) Ecofruit - 12th International Conference on Cultivation Technique and Phytopathological Problems in Organic Fruit-Growing: Proceedings to the Conference from 31st January to 2nd February 2006 at Weinsberg/Germany, pp. 47-54.

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Summary

The pear leaf blister mite can cause severe damages to pear trees. By their hidden way of living inside
the leaf blisters, the mites are protected from plant protection agents. Until now, oil treatments
in early spring, when the mites leave their hibernation sites and invade the young leaves, are the
only possibility to control these mites. Because of the low temperatures during this period (February/
March) the efficacy of pesticides is often not reliable. The aim of this study was to assess the effects
of sulphur applied after harvest at the time, when mites are leaving the blisters and migrate to
the hibernation sites. The treatments were applied shortly after harvest to benefit from the mild temperatures
in September. Visual controls in following spring showed convincing results: With an efficacy
of 95% (one sulphur application in autumn) or 100% (three sulphur applications in autumn),
respectively, even a decontamination of heavily infested orchards is possible.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Schwefel, sulphur, Eriophyes pyri, Phytoptus pyri, Acari, Eriophydae
Subjects: Crop husbandry > Crop health, quality, protection
Crop husbandry > Production systems > Fruit and berries
Research affiliation: International Conferences > 2006: Ecofruit
Related Links:http://www.ecofruit.net
Deposited By: Tagung, Ecofruit
ID Code:13770
Deposited On:18 Sep 2008
Last Modified:12 Apr 2010 07:37
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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