Title: Grape phylloxera infestation rate in Switzerland
Authors : Fahrentrapp, Johannes
Müller, Lukas
Schumacher, Peter
Conference details: IOBC-WPRS Meeting of the Working Group on "Integrated Protection and Production in Viticulture", Ascona, Switzerland, 13 -17 October 2013
Issue Date: Oct-2013
Language : Englisch / English
Subjects : ZHO; IUNR; Wein
Subject (DDC) : 634: Obstanlagen, Früchte, Forstwirtschaft
Abstract: In the middle of the 19th century grape phylloxera (Dactulosphaira vitifoliae) was imported into Europe from North America. Viticulture was nearly broken down due to phylloxera outbreak and other diseases in the late 19th and early 20th century. The American grape vines are mainly susceptible in the leaves but resistant or tolerant in the roots. By contrast, the European grape vine, Vitis vinifera, shows the opposite susceptibility and tolerance phenotype. Therefore, the pest was managed successfully by grafting scions of V. vinifera grape cultivars on American rootstocks. But producers which are cultivating American-European hybrid cultivars such as Léon Millot  ((V. riparia x V. rupestris) x Goldrieslingor) and Maréchal Foch ((V. riparia x V. rupestris) x Goldrieslingor) have often high infestation rates with up to 150 galls per leave. We investigated the distribution of grape phylloxera in Switzerland. First results will be presented.
Departement: Life Sciences und Facility Management
Organisational Unit: Institut für Umwelt und Natürliche Ressourcen (IUNR)
Publication type: Konferenz: Poster / Conference Poster
Type of review: Keine Angabe / Not specified
URI: https://digitalcollection.zhaw.ch/handle/11475/4114
License (according to publishing contract) : Lizenz gemäss Verlagsvertrag / Licence according to publishing contract
Published as part of the ZHAW project : Occurence of grape phylloxera (Dactulosphaira vitifoliae) in Switzerland
Appears in Collections:Publikationen Life Sciences und Facility Management

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