Pest identification
What's eating my pinellia ternata?
Slugs & snails
Signs: Notches and holes in emerging petioles and leaf blades; cormlet seedlings frequently consumed before establishment.
Control: Use iron-phosphate pellets; clear dense mulch where slugs shelter; hand-pick regularly during wet spring weather.
Aphids
Signs: Sticky honeydew on peduncle and leaves; small colonies on tender new growth tips.
Control: Knock off with a water jet; apply neem oil or insecticidal soap; repeat every week until resolved.
Vine weevil
Signs: White grubs eat small cormlets underground, reducing plant vigor and spread; adult notches on leaf edges.
Control: Drench with Steinernema kraussei nematodes; inspect soil when dividing and destroy any grubs found.
Keep pinellia ternata pest-free
Healthy plants resist pests best. Get the basics right:
Pinellia ternata pests — FAQ
What is eating my pinellia ternata?
Pinellia ternata is a hardy herbaceous aroid used medicinally and as a garden curiosity. Slugs target the succulent emerging petioles and cormlets. Aphids may colonize the thin flower peduncle. Because it self-propagates aggressively via cormlets, slug pressure on seedlings can be significant in moist garden beds.
How do I get rid of slugs & snails on pinellia ternata?
Notches and holes in emerging petioles and leaf blades; cormlet seedlings frequently consumed before establishment. Use iron-phosphate pellets; clear dense mulch where slugs shelter; hand-pick regularly during wet spring weather.
How do I get rid of aphids on pinellia ternata?
Sticky honeydew on peduncle and leaves; small colonies on tender new growth tips. Knock off with a water jet; apply neem oil or insecticidal soap; repeat every week until resolved.
How do I get rid of vine weevil on pinellia ternata?
White grubs eat small cormlets underground, reducing plant vigor and spread; adult notches on leaf edges. Drench with Steinernema kraussei nematodes; inspect soil when dividing and destroy any grubs found.