What's eating my hylotelephium 'purple emperor'?

Hylotelephium 'Purple Emperor' faces the same garden pest pressure as other sedums: vine weevil grubs silently destroying roots are the chief killer, while aphids colonize fleshy shoot tips and slugs target spring growth. Its dark foliage offers no extra pest resistance; inspect roots annually if planted in containers.

Root system eaten by white grubs; plant wilts despite adequate moisture and pulls free of soil Nematode soil drench (Steinernema kraussei) applied to damp soil late summer; biological controls preferred

Colonies on succulent new stems, flower stems, and buds; sticky honeydew, ants farming colonies Insecticidal soap spray or neem oil; encourage natural predators; remove infested shoot tips

Spring crown damage to emerging shoots; irregular holes and mucus trails Ferric phosphate bait; grit mulch around crown; remove garden debris where slugs shelter