STOP THINNING mature DOUGLAS FIR trees, look at the research

If you often thin, or recommend thinning on isolated Douglas Fir trees (not a large stand of trees) then please watch this video. 00:00:01 Intro 00:01:45 Example of a Douglas Fir tree that requires pruning 00:04:34 Hazard mitigation pruning of long, heavy limbs 00:05:19 Douglas Fir tree we pruned for to reduce risk of limb failure in strong wind or snow load 00:06:14 Julian Dunster's thoughts of thinning or 'Spiral pruning' 00:08:22 Nick Dankers paper titled 'Pacific NorthWest Conifer Care Guidelines' 00:11:04 Example of more risk mitigation pruning of long heavy limbs over a house with glass skylights 00:12:13 Final thoughts #DouglasFir #Arborist #TreeWork