Spider Web-Like Cocoon on Live Oak: Need Photo for ID

A "spider web-like cocoon engulfing" a live oak in South Texas could be several things—each requiring different responses.

Possible Causes

• Fall webworms: Silken tents on branch tips; caterpillars inside; common in TX
• Tent caterpillars: Similar but in branch crotches; spring activity
• Bark lice (psocids): Fine webbing on trunk/branches; harmless; beneficial
• Spider mites: Fine webbing on leaves; stippled foliage; hot, dry conditions
• Ball moss/Tillandsia: Not webbing, but often mistaken for it

What to Look For

Note: location (tips vs. trunk), size, whether caterpillars are visible, leaf condition inside/outside webbing, and time of year.

Next Steps

1. Take clear photos: overall tree, close-up of webbing, any insects visible
2. Check if leaves within webbing are eaten or intact
3. Contact Texas A&M AgriLife Extension with photos for definitive ID

Most "web" issues on live oak are either harmless (bark lice) or manageable (webworms). Proper identification prevents unnecessary treatment.