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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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