1. Plant Health Operations Update
Ben Jones
Plant Health Operations Manager FC England

2. Phytophthora ramorum

3. 2012 Survey Summary
• 170 flying hours covering around
24,000 miles across the UK
• 79,058 Ha of larch surveyed across
England, Wales, Scotland, N Ireland &
IOM (increase in around 10,000 Ha
compared to 2011)
• Equates 70% of all larch that has
been analysed across the UK both on
respective PFEs and in PW

4. 2012 Survey Summary
• Observation of disease dynamics continue to be different in
different parts of the country – the more larch, the bigger the problem
• Significant new findings in SW Scotland, significant increase in S
Wales, limited new findings in the Forest of Dean and SE England
• Weather conditions have been extremely conducive for Pr
throughout 2012 – likely to see further infection
• Further findings generally being made in association with known
infected sites (both rhodo & larch), but rapid advance of symptoms in
some locations were observed over the summer

5. 2012 Survey Summary

6. Symptom Progression June 2011

7. Symptom Progression June 2011

8. Symptom Progression June 2012

9. Phytophthora ramorum symptom
progression on infected larch stands
in the UK
2013 Surveillance SW England

10. Phytophthora ramorum symptom
progression on infected larch stands
in the UK
2013 Surveillance SW England

11. Phytophthora ramorum symptom
progression on infected larch stands
in the UK
2013 Surveillance SW England

12. Phytophthora ramorum symptom
progression on infected larch stands
in the UK
2013 Surveillance SW England

13. Phytophthora ramorum symptom
progression on infected larch stands
in the UK
2013 Surveillance S Wales

14. Phytophthora ramorum symptom
progression on infected larch stands
in the UK
2013 Surveillance S Wales

15. Phytophthora ramorum symptom
progression on infected larch stands
in the UK
2013 Surveillance S Wales

16. Phytophthora ramorum symptom
progression on infected larch stands
in the UK
2013 Surveillance S Wales

17. Phytophthora ramorum symptom
progression on infected larch stands
in the UK
2013 Surveillance S Wales

18. 2013 Aerial Survey

19. 2013 Survey Summary

20. Chalara fraxinea

21. Chalara fraxinea
Sampling Observations

22. Chalara fraxinea
Sampling Observations

23. Chalara fraxinea
Sampling Observations

24. Chalara fraxinea
Sampling Observations

25. Chalara fraxinea
Sampling Observations

26. Chalara fraxinea
Sampling Observations

27. Chalara fraxinea
Sampling Observations

28. Chalara fraxinea
Sampling Observations

29. Chalara fraxinea
Sampling Observations

30. Site investigation: Basal Lesions

31. Chalara – E Anglia

32. Chalara – E Anglia

33. 1996 Planting

34. 1996 Planting

35. Current Situation