Pest identification
What's eating my adagio maiden grass?
Miscanthus mealybug (Miscanthiococcus miscanthi)
Signs: Stunted shoots, reddened stem bases, malformed flower heads; waxy mealybug clusters found deep in the sheath when pulled apart
Control: Cut out and burn infested stems; apply systemic insecticide in early spring at bud break; dig and discard heavily colonized clumps to prevent spread
Aphids
Signs: Soft green or black insects on new spring growth; minor leaf curl and honeydew residue
Control: Spray with insecticidal soap or neem oil; use a firm water jet; ladybugs and lacewings provide natural control
Rust fungus
Signs: Orange-brown powdery pustules on leaf blades in humid conditions; reduces the plant's appearance and vigor
Control: Remove affected foliage; space plants for airflow; apply a fungicide containing myclobutanil or trifloxystrobin if needed
Keep adagio maiden grass pest-free
Healthy plants resist pests best. Get the basics right:
Adagio Maiden Grass pests — FAQ
What is eating my adagio maiden grass?
Miscanthus sinensis 'Adagio' is a compact, pest-resilient ornamental grass. Miscanthus mealybug is the most damaging pest, concealed within leaf sheaths and causing stunted distorted growth. Aphids may appear on new shoots in spring, and rust can develop during humid weather.
How do I get rid of miscanthus mealybug (miscanthiococcus miscanthi) on adagio maiden grass?
Stunted shoots, reddened stem bases, malformed flower heads; waxy mealybug clusters found deep in the sheath when pulled apart Cut out and burn infested stems; apply systemic insecticide in early spring at bud break; dig and discard heavily colonized clumps to prevent spread
How do I get rid of aphids on adagio maiden grass?
Soft green or black insects on new spring growth; minor leaf curl and honeydew residue Spray with insecticidal soap or neem oil; use a firm water jet; ladybugs and lacewings provide natural control
How do I get rid of rust fungus on adagio maiden grass?
Orange-brown powdery pustules on leaf blades in humid conditions; reduces the plant's appearance and vigor Remove affected foliage; space plants for airflow; apply a fungicide containing myclobutanil or trifloxystrobin if needed