Arborvitae Brown Spots After Neighbor’s Chemical Driveway Treatment: Possible Drift Injury

25 emerald green arborvitae developed brown spots 4–6 days after neighbor applied strong chemical (acid?) to driveway in 100°F heat. Odor burned eyes/lungs.

Assessment

Symptoms suggest chemical drift injury, not contagious disease. Spots worst on side facing driveway.

Steps

• Document with photos for potential liability.
• Contact county Extension for on-site evaluation.
• Ask neighbor/contractor for product SDS (Safety Data Sheet).

Professional assessment needed to confirm cause and extent.