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Semelhante a 3. Tree Health event June 2013 ben jones pr update
Semelhante a 3. Tree Health event June 2013 ben jones pr update (16)
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3. Tree Health event June 2013 ben jones pr update
- 1. Phytophthora ramorum Update Ben Jones Plant Health Operations Manager FC England
- 2. 2012 Survey Summary • 170 flying hours covering around 24,000 miles • 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 • In England this resulted in increased investigations of 597 sites (compared to 455 in 2011) which in turn lead to the issuing of 163 Statutory Notices (compared to 120 in 2011)
- 3. 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
- 7. Symptom Progression June 2011
- 8. Symptom Progression June 2012
- 14. 2010 SW England DISTRIBUTION OF LARCH FROM 2010 INFECTIONS 0 1000 2000 3000 4000 5000 6000 7000 8000 2010 Infected 0-2km 2-5km 5-10km >10km Hectares Uninfected Larch Infected Larch Total Area of Larch = 10,650 ha Infected area in 2010 = 1,261 ha (12%)
- 15. 2012 Survey Summary SW ENGLAND - PROXIMITY OF NEW INFECTIONS TO EXISTING INFECTIONS 0 1000 2000 3000 4000 5000 6000 7000 8000 2010 Infected 0-2km 2-5km 5-10km >10km Hectares Uninfected Larch Infected Larch Total Area of Larch = 10,650 ha Infected area in 2012 = 2,073 ha (19%)
- 16. 2012 Survey Summary SW ENGLAND - PHYTOPHTHORA STATUS ON LARCH AT END OF 2012 0.0 500.0 1000.0 1500.0 2000.0 2500.0 3000.0 3500.0 4000.0 4500.0 D evonG loucestershire Cornw all Som erset W iltshire D orset N orth Som erset Plym outh South G loucs Bath & N E Som erset Torbay Hectares Uninfected Larch Infected Larch 54% 18% 23% 6% 6% 5%
- 17. Phytophthora ramorum symptom progression on infected larch stands in the UK • Cold spring delayed start of aerial surveillance by nearly 4 weeks • Flights started in England and Wales in the 10th May, 4 flights undertaken so far, 2 in Wales and 2 in England. • FC Scotland undertaking their own surveillance this year, flight started 22nd May • Flights undertaken to the Lake District and Wales last week, and along the South Coast and to E Anglia this week 2013 Surveillance
- 18. Phytophthora ramorum symptom progression on infected larch stands in the UK 2013 Surveillance SW England
- 19. Phytophthora ramorum symptom progression on infected larch stands in the UK 2013 Surveillance SW England
- 20. Phytophthora ramorum symptom progression on infected larch stands in the UK 2013 Surveillance SW England
- 21. Phytophthora ramorum symptom progression on infected larch stands in the UK 2013 Surveillance SW England
- 22. Phytophthora ramorum symptom progression on infected larch stands in the UK 2013 Surveillance S Wales
- 23. Phytophthora ramorum symptom progression on infected larch stands in the UK 2013 Surveillance S Wales
- 24. Phytophthora ramorum symptom progression on infected larch stands in the UK 2013 Surveillance S Wales
- 25. 2013 So Far………. • Observations in general haven’t been good…highlighting further the pattern of the more larch, the bigger the problem once infection becomes established • Significant but manageable findings in the SW, but the scale of infection in S Wales will lead to unprecedented logistical challenges with the potential for collateral damage to other species both in and out of the forest / woodland environment • Observations continue to highlight that early detection and prompt action is still the most effective way of managing the disease across hosts species including rhododendron