Explore articles on tree health, municipal bylaws, diagnostic science, and media appearances from the Cohen & Master team.
Cohen & Master was featured in the docuseries Blue Collar on Crave, highlighting the precision, climbing artistry, and intense teamwork required of modern urban arborists.
How Sonic Tomography and Resistograph micro-drills allow arborists to see inside a trunk's internal structure without causing harm or premature tree removal.
Recognizing woolly beech aphids, fungal cankers, and leaf scorch in European and American beech plantings across the Greater Toronto Area.
Why structural pruning during winter dormancy protects trees from insect-transmitted diseases (like Oak Wilt) and provides clean visual access to the bare branch framework.
A step-by-step arborist guide to Tree Protection Zones (TPZ), bylaw threshold requirements (30cm DBH), and securing municipal approvals.
How heavy foot traffic and clay soils starve tree roots of oxygen, and how supersonic Air-Spade decompaction and compost tea restore root vitality.
