Arborvitae Inner Browning: Normal Seasonal Needle Drop

Inner Foliage Browning and Dropping

Past couple weeks, inside leaves browning and falling. Rest of tree green and healthy.

Normal for evergreens. Inner needles shaded, drop first. If outer foliage green and healthy, no disease. Not to worry.

Plant Diseases: Arborvitae Browning: Seiridium Canker from Stress; Overwatering Causes Browning in Newly Planted Westmont Arborvitae; Maple Storm Damage: Internal Decay, Carpenter Ants, and Structural Risk; Arborvitae Sudden Death: Root Disease, Not Drought; Pruning Storm‑Damaged Arborvitae: Save or Remove the Broken Limb?; Arborvitae Top Dieback After Bagworms: Assessing Live Tissue and Recovery; Growth Regulator for Arborvitae: Using Atrimec to Limit Height Near Utility Lines; Redbud Leaffolder Control: Systemic Insecticide; Stopping Sassafras Stump Sprouts in the Lawn; Arborvitae Black Flagging: Abiotic Stress, Not Disease

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