The Forestry Commission has published a press release and video to help identify symptoms of ash dieback this year.
Link to the chalara ash dieback spring symptoms video, which is now live:
http://www.youtube.com/watch?v=UuU8_e0Vw8Q
Link to Forestry Commission press release on spotting spring symptoms:
http://www.forestry.gov.uk/newsrele.nsf/AllByUNID/46495DCD1CAD7BC980257B6C004BAEEC
Source: Forestry Commission. For further information please visit www.forestry.gov.uk/chalara