Pest identification
What's eating my colocasia crown of tonga?
Aphids
Signs: Colonies on new growth cause leaf curling, sticky honeydew, and sooty mold on the large foliage
Control: Blast off with a strong water jet, then apply insecticidal soap or neem oil; introduce ladybirds for biological control
Spider mites
Signs: Yellow stippling and fine webbing on leaf undersides, especially in hot, dry conditions
Control: Keep foliage misted, apply neem oil or insecticidal soap spray, and repeat every 5–7 days
Slugs and snails
Signs: Ragged holes in large leaves, particularly on young plants near moist soil; slime trails visible at night
Control: Use iron phosphate slug pellets around the base, set beer traps, or apply copper tape to containers
Caterpillars
Signs: Large irregular holes or entire leaf sections eaten, especially in warm outdoor conditions
Control: Handpick at dusk, apply Bacillus thuringiensis (Bt) spray, or use neem oil as a deterrent
Keep colocasia crown of tonga pest-free
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Colocasia Crown of Tonga pests — FAQ
What is eating my colocasia crown of tonga?
Colocasia Crown of Tonga is grown outdoors as well as in large containers, so it faces both indoor and garden pests. Aphids, spider mites, and caterpillars (especially taro hornworm in warmer regions) are the main threats. In ponds or boggy spots, slugs can shred young leaves overnight.
How do I get rid of aphids on colocasia crown of tonga?
Colonies on new growth cause leaf curling, sticky honeydew, and sooty mold on the large foliage Blast off with a strong water jet, then apply insecticidal soap or neem oil; introduce ladybirds for biological control
How do I get rid of spider mites on colocasia crown of tonga?
Yellow stippling and fine webbing on leaf undersides, especially in hot, dry conditions Keep foliage misted, apply neem oil or insecticidal soap spray, and repeat every 5–7 days
How do I get rid of slugs and snails on colocasia crown of tonga?
Ragged holes in large leaves, particularly on young plants near moist soil; slime trails visible at night Use iron phosphate slug pellets around the base, set beer traps, or apply copper tape to containers
How do I get rid of caterpillars on colocasia crown of tonga?
Large irregular holes or entire leaf sections eaten, especially in warm outdoor conditions Handpick at dusk, apply Bacillus thuringiensis (Bt) spray, or use neem oil as a deterrent