confor show sept 2013 tree health seminar ben jones, forestry commission
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Plant Health Operations Update
Ben Jones Plant Health Operations Manager FC England
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Phytophthora ramorum
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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
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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
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2012 Survey Summary
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Symptom Progression June 2011
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Symptom Progression June 2011
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Symptom Progression June 2012
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Phytophthora ramorum symptom progression on infected larch stands
in the UK
2013 Surveillance SW England
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Phytophthora ramorum symptom progression on infected larch stands
in the UK
2013 Surveillance SW England
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Phytophthora ramorum symptom progression on infected larch stands
in the UK
2013 Surveillance SW England
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Phytophthora ramorum symptom progression on infected larch stands
in the UK
2013 Surveillance SW England
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Phytophthora ramorum symptom progression on infected larch stands
in the UK
2013 Surveillance S Wales
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Phytophthora ramorum symptom progression on infected larch stands
in the UK
2013 Surveillance S Wales
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Phytophthora ramorum symptom progression on infected larch stands
in the UK
2013 Surveillance S Wales
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Phytophthora ramorum symptom progression on infected larch stands
in the UK
2013 Surveillance S Wales
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Phytophthora ramorum symptom progression on infected larch stands
in the UK
2013 Surveillance S Wales
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2013 Aerial Survey
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2013 Survey Summary
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Chalara fraxinea
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Chalara fraxinea Sampling Observations
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Chalara fraxinea Sampling Observations
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Chalara fraxinea Sampling Observations
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Chalara fraxinea Sampling Observations
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Chalara fraxinea Sampling Observations
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Chalara fraxinea Sampling Observations
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Chalara fraxinea Sampling Observations
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Chalara fraxinea Sampling Observations
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Chalara fraxinea Sampling Observations
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Site investigation: Basal Lesions
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Chalara – E Anglia
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Chalara – E Anglia
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1996 Planting
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1996 Planting
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Current Situation