Pest identification
What's eating my echinacea 'magnus'?
Japanese beetle (Popillia japonica)
Signs: Adults skeletonize petals and leaves, leaving behind lace-like tissue in midsummer.
Control: Hand-pick adults into soapy water in the morning; apply neem oil as a deterrent; avoid pheromone traps near plantings.
Aphids
Signs: Colonies on stems and buds cause sticky, distorted growth and sooty mold.
Control: Strong water spray or insecticidal soap; encourage natural predators such as ladybugs and lacewings.
Leafhoppers (vector for aster yellows)
Signs: Aster yellows phytoplasma causes distorted, green-tinged, stunted flowers and yellowing foliage.
Control: Remove and destroy infected plants immediately; control leafhopper populations with row cover early in the season.
Slugs & snails
Signs: Holes in young basal leaves in spring, particularly in moist shaded spots.
Control: Iron-phosphate pellets, hand removal at night, and clearing nearby debris.
Keep echinacea 'magnus' pest-free
Healthy plants resist pests best. Get the basics right:
Echinacea 'Magnus' pests — FAQ
What is eating my echinacea 'magnus'?
Echinacea 'Magnus' is generally tough but aphids, Japanese beetles, eriophyid mites (causing aster yellows via leafhoppers), and slugs can damage plants. Japanese beetles are the most destructive outdoor pest, skeletonizing flowers and foliage rapidly in midsummer across much of the US.
How do I get rid of japanese beetle (popillia japonica) on echinacea 'magnus'?
Adults skeletonize petals and leaves, leaving behind lace-like tissue in midsummer. Hand-pick adults into soapy water in the morning; apply neem oil as a deterrent; avoid pheromone traps near plantings.
How do I get rid of aphids on echinacea 'magnus'?
Colonies on stems and buds cause sticky, distorted growth and sooty mold. Strong water spray or insecticidal soap; encourage natural predators such as ladybugs and lacewings.
How do I get rid of leafhoppers (vector for aster yellows) on echinacea 'magnus'?
Aster yellows phytoplasma causes distorted, green-tinged, stunted flowers and yellowing foliage. Remove and destroy infected plants immediately; control leafhopper populations with row cover early in the season.
How do I get rid of slugs & snails on echinacea 'magnus'?
Holes in young basal leaves in spring, particularly in moist shaded spots. Iron-phosphate pellets, hand removal at night, and clearing nearby debris.