Pest identification
What's eating my flat-leaved rosularia?
Mealybugs
Signs: White waxy filaments between leaves; plant weakens and drops lower leaves; honeydew attracts mould
Control: Spot-treat with 70% isopropyl alcohol on a swab; spray entire plant with neem oil or insecticidal soap weekly for 3–4 weeks
Root mealybugs
Signs: Plant wilts despite adequate moisture; white powdery deposits visible on roots when unpotted
Control: Unpot, wash all soil from roots, soak roots briefly in diluted neem solution, repot in sterile gritty mix
Fungus gnats
Signs: Larvae damage fine roots; adults are a nuisance; seedlings most at risk
Control: Reduce watering frequency; top-dress with coarse grit to deter egg-laying; apply Bti drench
Keep flat-leaved rosularia pest-free
Healthy plants resist pests best. Get the basics right:
Flat-Leaved Rosularia pests — FAQ
What is eating my flat-leaved rosularia?
Flat-Leaved Rosularia is a compact alpine succulent rarely struck by pests when given bright light and gritty, fast-draining compost. Mealybugs are the chief indoor threat, colonising the tight rosette. Fungus gnats signal overwatering. Root mealybugs can lurk unseen below the soil surface and are often overlooked.
How do I get rid of mealybugs on flat-leaved rosularia?
White waxy filaments between leaves; plant weakens and drops lower leaves; honeydew attracts mould Spot-treat with 70% isopropyl alcohol on a swab; spray entire plant with neem oil or insecticidal soap weekly for 3–4 weeks
How do I get rid of root mealybugs on flat-leaved rosularia?
Plant wilts despite adequate moisture; white powdery deposits visible on roots when unpotted Unpot, wash all soil from roots, soak roots briefly in diluted neem solution, repot in sterile gritty mix
How do I get rid of fungus gnats on flat-leaved rosularia?
Larvae damage fine roots; adults are a nuisance; seedlings most at risk Reduce watering frequency; top-dress with coarse grit to deter egg-laying; apply Bti drench