防ぼう虫ちゅう加か工こう

noun which may take the genitive case particle 'no'

mothproofing; insect-repellent treatment

Refers to a finish or processing applied to textiles, wood, or other materials to repel or resist insects, especially moths.

• このセーターは防ぼう虫ちゅう加か工こうが施ほどこされているので、虫むし食くいの心しん配ぱいが少すくない。

  This sweater has been treated with mothproofing, so there is less worry about insect damage.

• 防ぼう虫ちゅう加か工こうされた木もく材ざいはシロアリに強つよい。

  Wood treated with insect repellent is resistant to termites.