From 2010 through 2012, the Agroscope Reckenholz-Tänikon ART and Agroscope Changins-Wädenswil ACW research stations tested in total eight varieties of Berseem clover and three varieties of Crimson clover in comparative variety trials at seven experimental sites. All varieties were grown in pure stands and in mixture with grasses. The parameters assessed were dry matter yield, juvenile development, vigour, competitive ability, persistence, resistance to leaf diseases and winter conditions and dry matter content. For each variety, an indexvalue based on field measurements and observations was calculated, allowing an accurate comparison of the varieties. According to the results, one new variety of Berseem clover (Bluegold) will be added to the «List of recommended varieties of forage plants». The previously recommended variety Elite II has been disqualified. With Crimson clover, one of the three breeds tested (Contea) reached the index-value required for recommendation. The two other varieties Clo and Carmina will not be recommended, but can still be used in standard mixtures until the end of 2015.
Tuta absoluta is one of the most destructive pests of solanaceous crops. Agroscope has developed a statistical model to study the population dynamics of the pest and its parasitoids and allows interventions to be optimally planned.
Swiss vineyards are often small and arranged in a mosaic of separate plots and management practices. Therefore, it can be assumed that spray drift from conventional to organic vineyards occurs regularly. Nevertheless, no pesticide residues are detected in most organic wines.
Nay M.M., Grieder C., Frey L.A., Amdahl H., Radovic J., Jaluvka L., Palmé A., Skøt L., Ruttink T., Kölliker R.
Red clover is one of the most important legumes in European forage production. In a multi-year field trial, researchers tested Europe’s largest collection of different red clover accessions at five European locations.