Psa can be spread through movement of infected plant material, including budwood. Presently there is no effective way to ‘clean’ infected material or guarantee the Psa status of any material.All suppliers of budwood must register with KVH and complete a biosecurity risk management plan, recording all budwood movements. The movement of infected plant material is not permitted. Movement controls restrict the movement of budwood within and between regions. These movement controls are underpinned with a legal notice, available on the KVH website, of which failure to comply may result in a prosecution under the Biosecurity Act 1993. To find out more about Budwood protocols, click here.