Infections can survive in slurry and manure. To reduce the risk:
- spread on arable land rather than grass for silage making or stock grazing. If this is not possible, allow a 6 week gap between spreading and access by livestock.
- spread slurry using an inverted spreading plate.
- avoid using hired or shared spreaders if possible. However, if sharing is unavoidable, ensure spreaders are thoroughly cleansed before coming on your farm and again before leaving.
The PEPFAA code (Prevention of Environmental Pollution from Agricultural Activity) is the acknowledged source of information on spreading of farm wastes and is currently being revised. A PEPFFA DOs and DON'Ts simple and practical guide for farmers is available.
Legislation also regulates spreading of sewage sludge ( The Sludge (Use in Agriculture) (Amendment) Regulations 1990 (S.I. 1990/ 880).