During three years (2003 – 2005) carrot varieties Bolero and Maestro (Villmorin) were cultivated to study the influence of cultivation systems and harvest time on yield, carrot size and the incidence of carrot-rots after six months storage at 1°C and 92% RH. In all three years similar tendencies were observed with respect to yield and storability. Depending on the harvest time, first after 95 days, (mid-September), the losses by root disease after storage (Sclerotinia, Alternaria and or Botrytis) where highest. As later the harvest time, mid-October (125 days) or mid-November (155 days), as lower the losses after six months storage. The incidence of disease during storage varied from year to year, depending on fungal infections and root damage at harvest, as the results from 2004 show. In addition, there were indications that soil temperature and the dry substance of the harvested carrots have an influence on the occurrence of root disease. With prolonged growing period, at a sowing density of 100 seed per meter (approximately 60 carrots per meter) the number of oversized carrot roots increase. Following the results obtained in the three successive years, it is concluded that carrots should not be harvested before mid-October, when sown in June
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.