Four intensively managed permanent meadows were cut during several years either at seed maturity of the forage grass species or at heading stage. This last cutting regime prevented the self-reseeding of the forage grass species and brought about a deterioration of the botanical composition of the cocksfoot meadow and the foxtail meadow. The populations of cocksfoot (bunch grass) and of meadow foxtail were maintained or favoured by the cutting regimes allowing their self-reseeding. On the other hand, perennial ryegrass and Kentucky bluegrass (turf grasses) were disadvantaged by the late cuts although they could produce seeds. With the aim of allowing the grasses to produce seeds with a minimum loss of average forage quality, the meadows were cut at different early stages before the self-reseeding regrowth. An early fist utilisation at shooting stage allowed enough seeds to be produced during the second regrowth and improved the average forage quality compared to the other cutting regimes with self-reseeding. We conclude that allowing self-reseeding every two to four years helps maintain meadows of good botanical composition having an important proportion of bunch grasses, but is not advisable for intensive grassland containing large proportions of good turf grasses. An early first utilisation at shooting stage followed by a second cut at seed maturity with ground drying of the forage allows self-reseeding with a minimum loss in forage quality in the year of self-reseeding.
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.