The following guide gives information on what sprays to use and the best time for applications.
In Northern Ireland land owners have a responsibility to control noxious weed such as thistles and Ragwort before they seed and spread, and maybe legally required to do so by a DAERA notice. Herbicides are a very useful tool in controlling noxious weeds and ensuring a highly productive pasture.
Guidance leaflet NW10 - Herbicides for the control of noxious weeds in grassland