Tag Archives: dormant oil

What’s up with that duck?

Each March the Canada geese herald in the beginning of spring with the honking broadcasts and displays of male prowess on lakes and storm water collection ponds.  The real sign of spring (for me) is when they start standing on … Continue reading

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A slow, wet start to spring

Due to the cool, overcast weather, we haven’t been receiving much heat in most parts of southern Ontario. In Guelph, the Cornus mas (Cornelian cherry dogwood) is just starting to bloom, many still in flower bud, the Acer saccharinum (silver … Continue reading

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Horticultural Oil Applications Starting (again?) Soon

Applications of horticultural oil to dormant trees and shrubs will be starting soon (daily temperatures between 4C and 12C are ideal). Timing of dormant oil applications are critical since freezing temperatures, mixing with sulphur and applying at the dormant-rate on actively … Continue reading

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