Silken-webbing
Guides
Epinotia nanana
European spruce needleminer, green spruce leaf miner, green spruce needle miner
Epinotia nanana is a small tortricid moth whose larvae are specialized needle miners of spruce trees. Native to Europe and Asia, it has been introduced to North America where it has become a pest of ornamental and forest spruce. The species has a univoltine life cycle with larvae overwintering in mined needles and completing development the following spring. Larval feeding creates distinctive silken webbing that secures mined needles to twigs.