05/31/2026
Those dark, shiny bands wrapped around your cherry tree twigs that look like dried sap aren't sap. They're eastern tent caterpillar egg masses β and they hatch when the first leaves open.
The caterpillars build communal silk tents in branch crotches and feed outward from there. On young trees, a single colony can thin the canopy noticeably. On mature trees, the damage is usually cosmetic β the tree releafs β but the webs are hard to miss.
The egg bands are laid almost exclusively on thin twigs of trees in the rose family: wild cherry, crabapple, apple, and plum. Removing them now, before budbreak, is the easiest intervention in the whole cycle.
πΏ Where to look:
- Thin, pencil-sized twigs on cherry, apple, crabapple, and plum trees β especially near the tips where new spring growth will emerge
- Look for a dark brown or black band wrapped completely around the twig β smooth, shiny, and roughly the width of a fingertip
- Check wild cherry trees at the edge of your property β these are the most common host, and colonies spread from there to ornamentals
π± How to remove them:
- Use pruning shears to snip the twig a few inches below the band β the egg mass is cemented on and won't scrape off easily
- Drop the clippings into a bucket of soapy water or seal them in a bag for a few days before discarding
- Check the same trees again in a week β you'll often spot bands you missed on the first pass once your eye is trained
- If tents have already formed in branch crotches by the time you find them, remove the webbing early in the morning when the caterpillars are clustered inside. A stick or gloved hand works β no chemicals needed
One snip per twig. A few minutes per tree. The easiest pest removal of the spring πΏ