After cutting is a particularly favourable time to target problem weeds in the grassland. Farmers should take the following into account as they tackle weeds:
- Mechanical and chemical means can be used to combat weeds
- After-treatments are required at times – farmers need to be flexible regarding the application period
- Toxic plants have negative effects on farm animal health and performance
- Observe waiting times; use Simplex in spring with subsequent grazing only
- Remove toxic plants such as common ragwort once they have died off since animals lose their aversion to toxic plants when feeding if the plants have been treated
Sorrel is widespread on grassland. A DM yield loss of 5% is to be expected with just one sorrel plant per square metre. Farmers achieve an optimal control time (20% of sorrel flowering stems sprouted) using a full rose across sufficient leaf mass. If farmers declare war on sorrel with Ranger, for example, they will kill chickweed and dandelion at the same time.