Ailanthus Webworm

This southern critter spends its summers in the North.

Font
  • A
  • A
  • A

E-mail This Page to Your Friends

x

All fields are required.

Separate multiple e-mail addresses with a comma; Maximum 20 email addresses.

Refresh

Sending E-mail

Sending E-mail

Or Do Not E-mail

Success!

A link to %this page% was e-mailed

Webworm Garden Pests


This colorful moth spends much of its time in close association with tree-of-heaven (Ailanthus altissima), a gangly tree known for its propensity to produce volunteers and grow in even the most formidable locations. Folding over a few leaves of the ailanthus, the webworm lays its eggs, and the emerging larvae eat the leaves.

A native of Central and South America, the ailanthus webworm can't overwinter in cold areas. Instead, the adults fan out over the continental U.S. and as far north as southern Canada. The adult visits flowers and is considered a pollinator; the ailanthus webworm is rarely a garden pest.

We Recommend...

The Lowdown on Garden-Friendly Bugs

The Lowdown on Garden-Friendly Bugs

Learn about a variety of insects that can help prevent garden pests from terrorizing your yard.

Keeping Mosquitoes at Bay

Keeping Mosquitoes at Bay

A female mosquito typically lays several broods of eggs, and she needs only a thimbleful of water. Here are some non-chemical...

Milkweed Bug

Milkweed Bug

This insect is a problem only if you're trying to grow milkweed.

From our Sister Sites:

Advertisement

HGTV Outdoors Newsletter

Find out how to make the most of patios, decks and all your outdoor areas, plus tips from master gardeners for beautiful flower beds and bountiful vegetable gardens.