Pest identification
What's eating my begonia nelumbifolia 'marmorata'?
Spider mites
Signs: Pale stippling and bronzing across the large leaf surface; fine webbing on undersides; severe cases cause leaf drop.
Control: Maintain humidity above 50%; spray undersides of leaves with water forcefully; treat with insecticidal soap or neem oil every 7 days.
Mealybugs
Signs: White cottony masses where petioles meet the stem; honeydew makes leaves sticky and can lead to fungal growth.
Control: Spot-treat with isopropyl alcohol; follow with repeated neem oil sprays; check new growth carefully as it emerges.
Fungus gnats
Signs: Larvae damage roots in the consistently moist, peat-rich mix this species prefers; seedlings and young plants most at risk.
Control: Allow the soil surface to dry between waterings; apply sticky yellow traps; use a Bti-based soil drench.
Keep begonia nelumbifolia 'marmorata' pest-free
Healthy plants resist pests best. Get the basics right:
- What eats begonia nelumbiifolia — the species this cultivar belongs to
- What's wrong with my plant? — the diagnosis apps compared
- Common begonia nelumbifolia 'marmorata' problems & fixes
- Begonia nelumbifolia 'Marmorata' watering schedule
- Begonia nelumbifolia 'Marmorata' light requirements
- Full begonia nelumbifolia 'marmorata' care guide
Begonia nelumbifolia 'Marmorata' pests — FAQ
What is eating my begonia nelumbifolia 'marmorata'?
Begonia nelumbifolia 'Marmorata' is a large-leaved tropical begonia grown indoors. Its broad, peltate leaves are prone to spider mite damage in dry air and fungus gnats in its moisture-retentive soil. Inspect the undersides of its distinctive marbled foliage regularly and maintain moderate humidity to deter pests.
How do I get rid of spider mites on begonia nelumbifolia 'marmorata'?
Pale stippling and bronzing across the large leaf surface; fine webbing on undersides; severe cases cause leaf drop. Maintain humidity above 50%; spray undersides of leaves with water forcefully; treat with insecticidal soap or neem oil every 7 days.
How do I get rid of mealybugs on begonia nelumbifolia 'marmorata'?
White cottony masses where petioles meet the stem; honeydew makes leaves sticky and can lead to fungal growth. Spot-treat with isopropyl alcohol; follow with repeated neem oil sprays; check new growth carefully as it emerges.
How do I get rid of fungus gnats on begonia nelumbifolia 'marmorata'?
Larvae damage roots in the consistently moist, peat-rich mix this species prefers; seedlings and young plants most at risk. Allow the soil surface to dry between waterings; apply sticky yellow traps; use a Bti-based soil drench.