Pest identification
What's eating my oregon stonecrop?
Mealybugs
Signs: White cottony deposits in leaf axils and along stems; leaves may yellow or wilt as sap is removed.
Control: Dab colonies with isopropyl alcohol on a cotton swab; spray the whole plant with diluted neem oil; re-treat weekly.
Spider Mites
Signs: Tiny pale dots on the upper leaf surface; fine webs between leaves in dry conditions.
Control: Rinse leaves with lukewarm water; increase humidity; apply neem oil or insecticidal soap spray.
Fungus Gnats
Signs: Larvae damage shallow roots in wet soil; tiny dark flies seen around the base of the plant.
Control: Reduce watering frequency; top-dress with horticultural grit to deter egg-laying; use Bti drench for larval control.
Keep oregon stonecrop pest-free
Healthy plants resist pests best. Get the basics right:
Oregon Stonecrop pests — FAQ
What is eating my oregon stonecrop?
Oregon Stonecrop (Sedum oreganum) as a houseplant faces the typical indoor succulent pests — mealybugs and spider mites are the most likely problems in warm, dry interiors. Overwatering encourages fungus gnats. Its glossy, fleshy leaves make pest spotting easier than on needle-leaved sedums. Mealybugs are the most frequently reported pest on indoor specimens.
How do I get rid of mealybugs on oregon stonecrop?
White cottony deposits in leaf axils and along stems; leaves may yellow or wilt as sap is removed. Dab colonies with isopropyl alcohol on a cotton swab; spray the whole plant with diluted neem oil; re-treat weekly.
How do I get rid of spider mites on oregon stonecrop?
Tiny pale dots on the upper leaf surface; fine webs between leaves in dry conditions. Rinse leaves with lukewarm water; increase humidity; apply neem oil or insecticidal soap spray.
How do I get rid of fungus gnats on oregon stonecrop?
Larvae damage shallow roots in wet soil; tiny dark flies seen around the base of the plant. Reduce watering frequency; top-dress with horticultural grit to deter egg-laying; use Bti drench for larval control.