What's eating my geranium pratense 'victor reiter junior'?

Geranium pratense 'Victor Reiter Junior' is notable for its dark purple-bronze foliage. As a meadow cranesbill selection in open borders, it faces typical outdoor pests: aphids on tender shoot tips, sawfly larvae that can rapidly strip the ornamental leaves, and slugs on emerging spring growth. Rabbits may browse unprotected specimens.

Colonies on new shoots and flower stems causing distortion, sticky honeydew, and potential reduction in the foliage color display Jet of water; insecticidal soap spray; introduce or attract natural predators; avoid over-feeding with high-nitrogen fertilizers

Skeletonized leaves with only veins remaining; the distinctive dark foliage makes damage visually conspicuous and especially harmful Inspect leaf undersides regularly from June; hand-pick; spray with pyrethrum or spinosad at first sign of gregarious feeding

Holes and torn edges on emerging leaves in spring; dark foliage makes damage obvious; worse in wet seasons Ferric phosphate pellets; copper barrier tape on raised beds; hand-pick after dark

Clean-cut browsing of stems and foliage, particularly damaging on young plants at border edges Wire mesh guards or spiral tree guards around individual plants; perimeter fencing where rabbit pressure is consistent