Why Italian Cypress Turns Brown Inside: Natural Shedding vs. Pests

The Observation

Twelve mature Italian cypresses in Southern California have brown, dead interior needles and drooping branches. The owner has shaken out dead needles but they keep accumulating.

Normal Aging

Most upright evergreens naturally shed inner needles as the canopy thickens and shades the interior. This is not a disease.

Check for Pests

• Bagworms: Look for 1–2 inch brown spindle‑shaped bags hanging on branches. If found, pick off or treat with Bacillus thuringiensis (Bt) in spring.
• Spider mites: Tap a branch over white paper; tiny moving specks indicate mites.

Cultural Tips

• Ensure excellent drainage—cypresses hate wet feet.
• Water deeply but infrequently; let soil dry between waterings.
• Avoid over‑mulching against the trunk.

When to Worry

If browning extends to outer foliage, branches die back, or you see pest signs, send a close‑up photo for diagnosis.