Your tree questions with Gerard Fournier
Sep 4, 2026 · 52m
Summary
Host Andrew Brown joins master arborist Gerard Fournier to discuss fall tree care, including why autumn planting promotes root growth and how to manage Dutch elm disease in Edmonton. Listeners call with questions about saving a dying black spruce, identifying aphids on willows, and pruning Evans cherries and nanking hedges. Fournier also advises on proper watering techniques for shallow-rooted trees and the best times to transplant or prune crabapples.
Topics discussed
Sponsor: Midas tire guarantee
Intro: Master arborist Gerard Fournier
Why fall is better than spring for planting trees
Dutch Elm Disease prevention in Alberta
Caller: Caring for a dying black spruce
Email: Pruning apple trees in fall vs spring
Caller: Identifying mites and aphids on trees
Caller: Evans cherry tree care and spacing
Caller: Treating spruce needle rust
Caller: Planting and pruning crabapple trees
News update: Missing ballots and weather
Caller: Pruning an overgrown nanking cherry
Caller: Watering and mulching mature evergreens
Caller: Saving a dying lodgepole pine
Caller: Diagnosing a leaning elm tree
Caller: Transplanting crabapple trees
Caller: Northern flickers nesting in crabapple
Caller: Controlling spruce budworm infestation
Caller: Reviving a Schubert choke cherry
Outro: Soil amendment and show credits
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