Watts Tree Experts

Google Business Profile | Friday, May 29, 2026

Heat Stress vs. Fungal Disease: Reading What Your Tree Is Telling You in Late May

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Leaf curl, discoloration, and early drop on Frederick-area trees right now could mean heat stress or fungal disease, and the treatment for each is completely different. Knowing which one you're dealing with matters.

Heat stress shows clean brown or scorched leaf edges, often on the sun-facing side of the canopy. Fungal disease typically shows irregular spots, rings, or blotches across the leaf surface, with more uniform early leaf drop. Both are common in the mid-Atlantic in late May as temperatures climb and humidity builds.

Watts Tree Experts serves Frederick, MD and surrounding communities. Our arborists can assess what's happening with your trees and give you an honest picture of the best path forward. Free estimates available for all property types.

Schedule your visit at https://app.singleops.com/accounts/WattsTreeExperts/portal #FrederickMD #TreeHealth #ArboristService #TreeCare #MarylandTrees


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Close-up photo of affected foliage showing clear symptoms, or an arborist examining leaves in the field. Maryland native tree species preferred for local relevance.

Google Drive image folder.

Canva text suggestion: "Heat Stress or Disease? We Know the Difference." or "Free Tree Assessment, Frederick MD"


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