ぶどうこんあぶらむしなら
葡萄根油虫なら
budō kon abura mushinara

Noun
Da Copula

The "-nara" conditional form ("if/when…") of ぶどうねあぶらむし

1. If/when it’s grape rootworm…; If/when there are grape rootworms…

Nara Conditional
Usually Written in Kana