Do All Catalpa Trees Have Worms

Not all catalpa trees produce worms; some do, but not every year and some will produce them every year. If they are higher on the leaves, you can shake branches to get them off or throw a rope over branches and shake them off that way.

Which catalpa trees have worms?

Host Plants Catalpa is the only know host of the catalpa sphinx including native northern and southern catalpas as well as Chinese catalpa. All are occasionally planted as an ornamentals. Catalpa worms feed exclusively on catalpa trees, sometimes completely defoliating them.

What month do catalpa worms come out?

The catalpa worm is found only on catalpa trees and typically appears in late June or early July for about two to three weeks.