Pest identification
What's eating my yellow foxglove?
Foxglove aphid (Aulacorthum solani)
Signs: Yellowish-green aphids cluster on undersides of leaves and along flower spikes, causing mottled distortion.
Control: Spray with insecticidal soap or pyrethrin-based insecticide; remove heavily infested leaves by hand.
Slugs and snails
Signs: Ragged holes in large basal leaves; seedlings can be completely consumed in wet spring conditions.
Control: Apply iron phosphate pellets around rosettes; remove dead leaves where slugs shelter beneath.
Japanese beetle (US)
Signs: Skeletonized leaves where beetles have eaten the tissue between veins, leaving a lace-like pattern.
Control: Hand-pick beetles in the morning; use neem oil as a deterrent; avoid beetle-lure traps near the plant.
Keep yellow foxglove pest-free
Healthy plants resist pests best. Get the basics right:
Yellow Foxglove pests — FAQ
What is eating my yellow foxglove?
Yellow Foxglove (Digitalis grandiflora) faces similar pests to common foxglove: aphids on flower spikes, foxglove aphid being a specialist culprit. Slugs and snails damage leaf rosettes. Japanese beetle can be a problem in North America. All parts are toxic, so large mammals generally avoid it, making invertebrate pests the primary concern.
How do I get rid of foxglove aphid (aulacorthum solani) on yellow foxglove?
Yellowish-green aphids cluster on undersides of leaves and along flower spikes, causing mottled distortion. Spray with insecticidal soap or pyrethrin-based insecticide; remove heavily infested leaves by hand.
How do I get rid of slugs and snails on yellow foxglove?
Ragged holes in large basal leaves; seedlings can be completely consumed in wet spring conditions. Apply iron phosphate pellets around rosettes; remove dead leaves where slugs shelter beneath.
How do I get rid of japanese beetle (us) on yellow foxglove?
Skeletonized leaves where beetles have eaten the tissue between veins, leaving a lace-like pattern. Hand-pick beetles in the morning; use neem oil as a deterrent; avoid beetle-lure traps near the plant.