Concerning variety testing of winter wheat under organic conditions Swiss authorities offer a new possibility. With beginning in autumn 2001 and with a scheduled re-evaluation after three years the actual variety tests are declared as an official variety testing program. This means that in the future winter wheat varieties can be accepted for the Swiss national variety catalogue by passing successfully the organic variety testing. This proceeding is unique in Europe. In two years tests the winter wheat varieties Titlis and Runal proved their good performance under organic agricultural practice. They showed a high efficiency in both agronomic and qualitative characteristics. The variety Pegassos is interesting for farms in transition to organic farming. Even with the lower price of fodder wheat the high grain yield of Pegassos leads to a net profit which is comparable with the net profit of a high quality variety. The tested winter barley varieties differed only little in the investigated parameters. Based on the obtained results the varieties Landi, Blanche, Baretta, Jasmin, Antonia as well as a blend of Baretta and Landi can be recommended for the cultivation under organic conditions. Hiberna represents the type of a naked winter barley which is suited for rolled barley or flakes and therefore is recommended for human consumption, but the yield potential of this variety is much lower than that of common fodder barley.
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.