The number of herbicide resistant weeds is worldwide rising. In Switzerland too, resistant biotypes have been reported. In this paper, we present the chronolology of the development of herbicide resistances in our country, up to now limited to triazines and ureas. We also discuss the risks of resistance development associated to the use of sulfonylureas and present a brief overview of the situation worldwide regarding resistances to glyphosate. At last, we recall the rules to apply in order to limit the development of herbicide resistances.
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.