What's eating my geranium cinereum 'lawrence flatman'?

Geranium cinereum 'Lawrence Flatman' is a small alpine cranesbill best suited to rock gardens and troughs. Like all G. cinereum cultivars, vine weevil poses the greatest risk to its compact root system. Slugs and aphids are secondary concerns, particularly during cool, damp growing periods.

Plants collapse without warning as white grubs consume roots; adult beetles leave characteristic U-shaped leaf notches Drench soil with Steinernema kraussei nematodes in late summer; inspect roots when repotting; use container compost with added grit to reduce egg-laying

Holes eaten in leaves and flowers overnight; silvery mucus trails on soil surface Scatter iron phosphate pellets; place coarse grit or crushed eggshell around the crown; hand-collect at night

Clusters on new growth distort shoot tips and leave honeydew that attracts sooty mould Remove by hand or with a water jet; apply insecticidal soap spray; avoid over-feeding with nitrogen, which produces lush, aphid-attractive growth