What's eating my antirrhinum majus 'twinny peach'?

'Twinny Peach' is a double-flowered snapdragon highly attractive to aphids, which mass on its dense blooms and soft stems. Caterpillars chew petals and foliage. Rabbits clip snapdragons at ground level, particularly in spring. Slugs can devastate seedlings. The double blooms hold moisture and may also attract fungal issues in damp weather.

Large colonies on stems, buds, and within double blooms; sticky residue and sooty mould. Targeted neem oil or insecticidal soap spray; water blast for accessible colonies; natural predators.

Petals and leaves with ragged chewing damage; caterpillars may hide inside dense double flowers. Check inside blooms; handpick; apply Bt spray to flower spikes.

Seedlings and young transplants eaten to the ground; slime trails at the base. Iron phosphate pellets; gritty barrier around individual plants; evening hand-picking.

Stems cleanly severed near ground level; plants repeatedly cut back in rabbit-populated areas. Individual wire mesh guards; solid perimeter fencing around beds; repellent sprays.