Pest identification
What's eating my nematanthus 'tropicana'?
Spider mites
Signs: Fine pale stippling on leaves; webbing visible on undersides and between stems; foliage fades and drops
Control: Shower plant thoroughly; apply insecticidal soap or neem oil every 5–7 days; maintain humidity above 50%
Mealybugs
Signs: Cottony deposits in stem forks and at leaf bases; honeydew residue; stunted growth
Control: Remove manually with alcohol swab; follow with neem oil spray; repeat weekly; isolate plant
Fungus gnats
Signs: Larvae damage fine roots; seedlings or cuttings wilt; adults flutter near the potting mix
Control: Allow compost to dry between waterings; apply Bti drench; use yellow sticky traps to monitor adults
Keep nematanthus 'tropicana' pest-free
Healthy plants resist pests best. Get the basics right:
Nematanthus 'Tropicana' pests — FAQ
What is eating my nematanthus 'tropicana'?
Nematanthus 'Tropicana' (goldfish plant) is an indoor trailing gesneriad. Spider mites are the primary pest, particularly in low humidity. Mealybugs hide in dense foliage nodes. Aphids can appear on young growth. Overwatering invites fungus gnats. A humidity tray and periodic leaf rinsing go a long way toward prevention.
How do I get rid of spider mites on nematanthus 'tropicana'?
Fine pale stippling on leaves; webbing visible on undersides and between stems; foliage fades and drops Shower plant thoroughly; apply insecticidal soap or neem oil every 5–7 days; maintain humidity above 50%
How do I get rid of mealybugs on nematanthus 'tropicana'?
Cottony deposits in stem forks and at leaf bases; honeydew residue; stunted growth Remove manually with alcohol swab; follow with neem oil spray; repeat weekly; isolate plant
How do I get rid of fungus gnats on nematanthus 'tropicana'?
Larvae damage fine roots; seedlings or cuttings wilt; adults flutter near the potting mix Allow compost to dry between waterings; apply Bti drench; use yellow sticky traps to monitor adults