What's eating my alocasia 'pink dragon'?

Alocasia 'Pink Dragon' is most at risk from spider mites, which devastate the large arrow-shaped leaves in dry indoor air. Mealybugs gather at petiole bases and in the corm area. Scale insects can encrust the distinctive pale pink petioles. Alocasia also enters dormancy under stress, so treat pests early before the plant retreats.

Pale, dusty stippling across leaves; fine webbing on undersides; heavy infestations cause leaves to yellow and drop, sometimes triggering dormancy Raise humidity significantly; shower the plant monthly; apply insecticidal soap or diluted neem oil weekly until no mites are found

White waxy fluff in the corm crevices and at petiole bases, often below soil level; plant wilts and yellows Unpot and inspect roots; remove colonies manually; drench soil with diluted neem oil; repot into fresh medium

Hard or soft bumps on the pink-tinged petioles and lower stems; sticky residue; leaves pale and lose vigour Remove by hand with a soft brush and 70% alcohol; treat with horticultural oil spray; repeat every 2 weeks for a month