What's eating my common snowdrop?

Common Snowdrop (Galanthus nivalis) is largely pest-resistant and toxic to most animals, but narcissus bulb fly larvae tunnel into bulbs causing rotting and failure to re-emerge. Narcissus eelworm deforms leaves and bulbs. Slugs nibble early shoots. Grey squirrels occasionally dig up bulbs out of curiosity but rarely eat them repeatedly.

Single fat larva tunnels into bulb core; plant fails to emerge or produces weak, yellowed, grassy foliage without flowers Cover foliage after flowering with fine mesh to prevent egg-laying females; remove and destroy affected bulbs; avoid planting where narcissus fly has been a problem

Distorted, puckered leaves with pale rings ('eelworm rings' visible when bulb is sliced); stunted or rotting plants Dig up and destroy infested clumps; do not compost; avoid replanting susceptible bulbs in the same spot for several years

Ragged edges on emerging leaf tips and flower scapes; slime trails Use iron phosphate pellets or horticultural grit mulch around emerging shoots; hand-pick on damp evenings