Examples from the Web for cankerworm
Raupenleim: a patented sticky substance used to catch the cankerworm.
Nearly all the common birds feed freely upon the cankerworm, and benefit the orchard in so doing.
Cankerworm, a worm which is very destructive to trees and plants.A Treatise on Domestic Economy|Catherine Esther Beecher
Paris society, I know for a fact; has many such a cankerworm in its heart.The Yellow Claw|Sax Rohmer
Sickness, like a cankerworm, was gnawing at her life, and dragging her towards the tomb.Poor Folk|Fyodor Dostoyevsky