貯穀 ちょこく害虫 がいちゅうじゃないです
chokokugaichūjanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 貯穀害虫

1. It's not a stored-grain pest.; It isn't a pest of stored grains.

Negative
Polite
Casual Register