In two field experiments with mouldboard plough, cultivator and no-tillage, the harvested grains of winter wheat were analysed. We examined the degree of contamination with Fusarium and the content of deoxynivalenol (DON). Fusarium graminearum, F. avenaceum and Microdochium nivale were isolated from all samples. The highest incidence of disease (up to 42 % infection by F. graminearum) and mycotoxin content (up to 6 ppm DON) were observed in the no-tillage system with maize or wheat as preceding crop. Compared to no-tillage, mouldboard plough reduced the grain contamination with F. graminearum and the DON-content by 80 % (cultivator: 45 %). In no-tillage treatments, rape as previous crop reduced the F. graminearum incidence and the DON-content by 90 % compared to maize as preceding crop. These data confirm the importance of crop rotation and soil management to reduce the risk of contamination with Fusarium and DON under moist and warm weather conditions during the wheat flower period.
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.