Pest identification
What's eating my alocasia macrorrhizos giant upright?
Spider mites
Signs: Bronze stippling across the vast leaf surface; webbing on undersides; premature leaf yellowing
Control: Hose down leaves regularly; apply neem oil or insecticidal soap; keep humidity above 60%
Mealybugs
Signs: Cottony wax clusters in petiole bases and stem joints; honeydew; weakened growth
Control: Dab colonies with isopropyl alcohol; spray neem oil; repeat every 10 days
Caterpillars (outdoor)
Signs: Large ragged bites through the leaf; frass trails; significant defoliation possible
Control: Hand-pick; apply Bt kurstaki spray; check plant at dusk when feeding peaks
Aphids
Signs: Dense colonies on new growth; sticky honeydew dripping from leaf margins; black sooty mould
Control: Blast with water; apply insecticidal soap or neem oil; release predatory insects in the garden
Keep alocasia macrorrhizos giant upright pest-free
Healthy plants resist pests best. Get the basics right:
- What eats giant taro — the species this cultivar belongs to
- What's wrong with my plant? — the diagnosis apps compared
- Common alocasia macrorrhizos giant upright problems & fixes
- Alocasia Macrorrhizos Giant Upright watering schedule
- Alocasia Macrorrhizos Giant Upright light requirements
- Full alocasia macrorrhizos giant upright care guide
Alocasia Macrorrhizos Giant Upright pests — FAQ
What is eating my alocasia macrorrhizos giant upright?
Alocasia macrorrhizos Giant Upright is large enough to be grown outdoors in warm climates, so it faces both indoor pests (spider mites, mealybugs) and outdoor threats (caterpillars, aphids). Its enormous leaves are especially attractive to caterpillars. Indoors, spider mites are almost inevitable without high humidity.
How do I get rid of spider mites on alocasia macrorrhizos giant upright?
Bronze stippling across the vast leaf surface; webbing on undersides; premature leaf yellowing Hose down leaves regularly; apply neem oil or insecticidal soap; keep humidity above 60%
How do I get rid of mealybugs on alocasia macrorrhizos giant upright?
Cottony wax clusters in petiole bases and stem joints; honeydew; weakened growth Dab colonies with isopropyl alcohol; spray neem oil; repeat every 10 days
How do I get rid of caterpillars (outdoor) on alocasia macrorrhizos giant upright?
Large ragged bites through the leaf; frass trails; significant defoliation possible Hand-pick; apply Bt kurstaki spray; check plant at dusk when feeding peaks
How do I get rid of aphids on alocasia macrorrhizos giant upright?
Dense colonies on new growth; sticky honeydew dripping from leaf margins; black sooty mould Blast with water; apply insecticidal soap or neem oil; release predatory insects in the garden