IPA: /ˈbʌdˌwɜːrm/
KK: /bʌdˌwɜrm/
A young form of certain moths that eats the buds of plants, often causing damage to trees and crops.
The budworm is known to harm spruce trees by feeding on their new growth.
Budworm → The word is formed from "bud" (from Old English *budda*, meaning a young shoot or sprout) and "worm" (from Old English *wyrm*, meaning serpent or worm). A budworm refers to a type of caterpillar that feeds on the buds of plants.
Think of a young plant shoot ('bud') being eaten by a 'worm' — that's what a budworm does.
No commonly confused words.