Gusberti, M.; Jermini, M.; Wyss, E. and Lindner, Ch. (2008) Efficacité d’insecticides contre Scaphoideus titanus en vignobles biologiques et effets secondaires. [Efficacy of insecticides against Scaphoideus titanus in organic vineyards and their side effects.] Revue suisse de viticulture, arboriculture, horticulture, 40 (3), pp. 173-177.
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Document available online at: http://www.agroscope.admin.ch/publikationen/02121/02152/index.html?lang=de
Summary in the original language of the document
La flavescence dorée de la vigne et la lutte obligatoire contre son vecteur Scaphoideus titanus posent d’importants problèmes dans les vignobles conduits en culture biologique. Afin de développer une stratégie de lutte basée sur des insecticides compatibles avec la viticulture biologique, des essais en plein champ ont été conduits au Tessin en 2006-2007. Le Parexan N (pyréthrine + huile de sésame) s’est avéré le seul produit biologique efficace à plus de 90% contre les formes immatures de S. titanus, par contre il n’a eu aucun effet contre les adultes. L’application répétée de Parexan N s’est montrée toxique pour les typhlodromes de l’espèce Amblyseius andersoni. Malgré cette toxicité, la seule stratégie de lutte efficace et recommandée dans les vignobles biologique consiste en trois applications de Parexan N à un intervalle de dix jours dès l’apparition des premiers individus du 3e stade larvaire.
Summary translation
Flavescence dorée and the mandatory control of its vector Scaphoideus titanus are considered as important problems in organic vineyards. Our field studies conducted in the Ticino between 2006 and 2007 aimed at developping an alternative insect pest control strategy conform to the guidelines of organic production. Parexan N (pyrethrin + sesame oil) was the only organic product showing an efficacy higher than 90% against the immature stages of S. titanus. However, the product had no effect on adult leafhoppers. Repeated applications of Parexan N proved to be toxic against the predatory mite species Amblyseius andersoni. Despite this toxicity, the only efficient and recommended control strategy in organic vineyards is the application of Parexan N. It should be applied three times at an interval of ten days after the first appearance of individuals of the 3rd nymphal stage.
| EPrint Type: | Journal paper |
|---|---|
| Keywords: | ökologischer Weinbau, Entomologie, Scaphoideus titanus Ball, Homoptera, Cicadellidae, flavescence dorée, organic insecticide, predatory mite, Amblyseius andersoni, control strategy, organic vineyard |
| Subjects: | Crop husbandry > Crop health, quality, protection Crop husbandry > Production systems > Fruit and berries > Viticulture |
| Research affiliation: | Switzerland > Agroscope > ACW - Research Centre Wädenswil Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Crops > Crop protection > Entomology Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Crops > Special crops > Winegrowing |
| Related Links: | http://www.acw.admin.ch, http://www.fibl.org, http://www.agroscope.admin.ch |
| Deposited By: | Wyss, Eric |
| ID Code: | 16987 |
| Deposited On: | 06 May 2010 10:24 |
| Last Modified: | 25 Nov 2020 10:52 |
| Document Language: | French/Francais |
| Status: | Published |
| Refereed: | Peer-reviewed and accepted |
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