What's eating my blue spruce stonecrop?

Blue Spruce Stonecrop (Sedum reflexum) as a houseplant most commonly attracts mealybugs hiding among its needle-like blue-grey leaves. Spider mites can thrive on the plant in low-humidity indoors. Overwatered specimens develop fungus gnat infestations. The spiky leaf texture makes thorough inspection important — mealybugs are the chief threat to watch for.

White fluffy wax tucked between densely packed needle leaves; slowed growth and leaf drop under heavy infestations. Use a cotton swab soaked in isopropyl alcohol to treat each colony; follow up with neem oil spray; isolate from other succulents.

Pale stippling and fine webbing on the needle leaves; worst in dry, warm conditions indoors. Wipe leaves and improve air circulation; apply insecticidal soap or neem oil every week for a month.

Root damage from larvae in moist soil; adult gnats flying near the pot surface. Water less frequently and allow soil to dry between waterings; use Bti biological drench; sticky yellow traps catch adults.