Sycamore Boulevard Decline: Purple Canker Stain, Not Planting Error

Boulevard sycamores (planted 2000) losing leaves, sprouting from trunks. Arborist blames planting. We suspect disease.

Water Sprouts = Survival Attempt

Trunk sprouting + canopy loss = tree dying. Simultaneous onset ≠ planting error (8 years later).

Suspect: Purple Canker Stain (Ceratocystis fimbriata)

• Fatal fungal disease of sycamores/planes
• Spreads via roots, insects, wounds
• No cure

Action

• Don't spend on remedial treatments
• Contact Ag/Forestry Dept for sample testing
• Research reference