title: Current downy mildew control strategies in Swiss organic vineyards creator: Tamm, Lucius creator: Amsler, Thomas creator: Schaerer, Hansjakob creator: Lévite, Dominique creator: Häseli, Andreas subject: Crop health, quality, protection description: The currently used downy mildew control strategies in vitis vinifera in Switzerland are based on the use of acidified clay products combined with copper and sulphur. Data from 1997-2003 show that acidified clay products are a valuable alternative to control downy mil-dew of grapevine in conditions of medium rain fall, good spray timing and with a good application tech-nique. The limits of these products show under heavy rain conditions and when there is high disease pressure. date: 2006 type: Conference paper, poster, etc. type: NonPeerReviewed format: application/pdf identifier: http://orgprints.org/8555/1/Tamm_Schaerer_downy_mildew_12.4.06.pdf format: application/pdf identifier: http://orgprints.org/8555/2/Tamm-etal-2006-Poster_Grapevine.pdf identifier: Tamm, Lucius; Amsler, Thomas; Schaerer, Hansjakob; Lévite, Dominique and Häseli, Andreas (2006) Current downy mildew control strategies in Swiss organic vineyards. Joint Organic Congress, Odense, Denmark, May 30-31, 2006. relation: http://orgprints.org/8555/