Browning, sparse canopy, resin drops, sunken cankers = Seiridium Canker (fungal). Affects cedars, Leyland cypress, junipers. Progressive branch dieback; 60%+ canopy loss in photo.
Tree is not savable. Too far advanced. Removal recommended.
Proximity to septic may contribute (excess moisture/nutrients), but canker is the primary killer. No fungicide cure.
Choose resistant species: Thuja 'Green Giant', Juniperus virginiana cultivars, or broadleaf evergreens. Improve drainage if septic influence confirmed.
Deodar Cedar Decline: Pest Identification and Diagnostic Resources
Christmas Evergreen in Ontario: Plant Outside If Native Species
Leyland Cypress Browning: Three Canker Diseases Compared
How Low Branches Rise: Pruning Young Trees for a 4‑ft Clear Trunk
Drought-Stressed Tree in Oklahoma: Generic Watering Advice
Reviving a Yucca with Hunched, Brown-Spotted New Growth
Reviving a Declining Juniper Bonsai: Common Mistakes and Fixes
Copyright © www.100flowers.win Botanic Garden All Rights Reserved