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Pests
Thrips on Colocasia
Commonly affects: Colocasia esculenta (Taro / Elephant Ear)
Silvery streaks and small dark specks appear on leaves, with rasped, discoloured patches developing over time, especially on new growth.
Potential Causes
- 1Thrips feeding on leaf tissue, rasping the surface and leaving distinctive silvery scarring
- 2Warm conditions favouring population growth
- 3Introduction from a nearby infested plant
Solution Steps
- 1Use blue sticky traps to monitor and reduce adult thrips
- 2Apply insecticidal soap or a spinosad-based treatment for active infestations
- 3Remove severely damaged leaves
- 4Isolate affected plants from other houseplants until cleared
Prevention Tip
Check new, still-unfurling Colocasia leaves closely for thrips damage, since this tender growth is often targeted first.
