noun
grapevine moth larva; moth caterpillar used as bait
Refers to the larva of a moth that feeds on grapevines; commonly used as live bait in mountain stream fishing.
渓流釣りではブドウ虫を餌に使うことが多い。
In mountain stream fishing, grapevine moth larvae are often used as bait.
ブドウ虫はブドウの葉を食べる害虫でもある。
Grapevine moth larvae are also pests that eat grape leaves.
Compound of ブドウ (grape) and 虫 (insect/worm), referring to a caterpillar found on grapevines.