What's eating my korean feather reed grass?

Korean feather reed grass (Calamagrostis brachytricha) is a tough, largely pest-free ornamental grass. Aphids may appear on new growth in spring, and leafhoppers occasionally cause pale stippling on leaves in summer. Slugs can damage emerging shoots. Deer and rabbits generally ignore it. Its dense clump habit and upright growth make it naturally resistant to most pests.

Soft spring shoots colonized; honeydew residue, slight curling of new leaves, ants clustering near infested areas Knock off with water jet; insecticidal soap spray; natural predators (ladybirds, parasitic wasps) usually sufficient

Pale stippling or silvery-white speckling across leaf blades; small active insects jump when disturbed Damage is usually cosmetic; improve air flow; pyrethrin-based spray only for heavy or persistent infestations

Chewing damage on emerging shoots in spring, particularly in shaded or moist garden positions Iron phosphate pellets; grit mulch around crown; remove leaf litter where slugs shelter over winter