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.
このセーターは防虫加工が施されているので、虫食いの心配が少ない。
This sweater has been treated with mothproofing, so there is less worry about insect damage.
防虫加工された木材はシロアリに強い。
Wood treated with insect repellent is resistant to termites.