Correct

蠹

/ dù / 
Strokes

Definition

insect that eats into books, clothing etc/moth-eaten/worm-eaten

Example

As a Noun

insects which feed on books, clothing, etc

1
Shūdù
书蠹

bookworm

2
Chú
除
dùwán
蠹丸

mothball

As a Verb

be worm-eaten