Growli

Pest identification

What's eating my pleiospilos compactus?

Mealybugs

Signs: White cottony fluff in the leaf-body crevice; distorted, shrivelled leaves

Control: Dab individual bugs with a cotton swab dipped in 70% isopropyl alcohol; treat persistent colonies with diluted neem oil, keeping it off the leaf bodies

Root mealybugs

Signs: Unexplained wilting and decline despite correct watering; white waxy deposits visible on roots when unpotted

Control: Unpot, rinse roots, soak in diluted systemic insecticide (imidacloprid solution) for 10 minutes, then repot in fresh gritty mix

Spider mites

Signs: Fine silvery stippling on leaf surfaces; faint webbing in dry indoor air

Control: Raise humidity briefly, wipe leaves with a damp cloth, and apply insecticidal soap or neem oil spray; improve air circulation

Fungus gnats

Signs: Larvae damage shallow roots in overly moist compost; adults are a nuisance around the plant

Control: Allow the substrate to dry completely between waterings; top-dress with coarse grit; use yellow sticky traps to monitor adults

Keep pleiospilos compactus pest-free

Healthy plants resist pests best. Get the basics right:

Pleiospilos compactus pests — FAQ

What is eating my pleiospilos compactus?

Pleiospilos compactus (split rock) is rarely troubled indoors but can attract mealybugs hiding in the crevice between leaf pairs and spider mites in hot, dry conditions. Root mealybugs are the sneakiest threat. Overwatering invites fungus gnats. Keep soil lean and dry to deter most pests naturally.

How do I get rid of mealybugs on pleiospilos compactus?

White cottony fluff in the leaf-body crevice; distorted, shrivelled leaves Dab individual bugs with a cotton swab dipped in 70% isopropyl alcohol; treat persistent colonies with diluted neem oil, keeping it off the leaf bodies

How do I get rid of root mealybugs on pleiospilos compactus?

Unexplained wilting and decline despite correct watering; white waxy deposits visible on roots when unpotted Unpot, rinse roots, soak in diluted systemic insecticide (imidacloprid solution) for 10 minutes, then repot in fresh gritty mix

How do I get rid of spider mites on pleiospilos compactus?

Fine silvery stippling on leaf surfaces; faint webbing in dry indoor air Raise humidity briefly, wipe leaves with a damp cloth, and apply insecticidal soap or neem oil spray; improve air circulation

How do I get rid of fungus gnats on pleiospilos compactus?

Larvae damage shallow roots in overly moist compost; adults are a nuisance around the plant Allow the substrate to dry completely between waterings; top-dress with coarse grit; use yellow sticky traps to monitor adults