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Tree Health Aerial Survey GB 2014
Flights are undertaken by helicopter to identify areas of suspicious larch that require inspection, to target specific tree and plant health issues and to generally observe... -
Protected Zone Plots Additional GB 10K Grid 2014
Survey sites used to confirm the absence/presence of bark beetle species, Pinewood Nematode and Pitch Pine Canker. The PZ plots defined by this set of data reflect a proposed 2...