By intercrossing Italian and perennial ryegrass, breeding progress within each of these two Lolium species can be combined into new cultivars of hybrid ryegrass. Here, we are presenting Ibex and Rusa, two new, very persistent cultivars bred by the Swiss Federal Research Station for Agroecology and Agriculture (FAL), Reckenholz. Both cultivars produce almost equally high yields. They are 3.5 and 5.9 % higher yielding than the previously best ranked cultivars in the first and second year after the year of sowing, respectively. However, Ibex and Rusa differ in the tendency to form inflorescences in the aftermath growth. This leads to differences in the annual yield distribution and in digestibility. During summer, Rusa forms less reproductive tillers and is better digestible but lower yielding than Ibex. Both cultivars have high levels of disease resistance, particularly against crown rust and bacterial wilt.
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.