What's eating my alocasia zebrina?

Alocasia Zebrina's striking zebra-striped petioles and large leaves are most threatened by spider mites, especially in low-humidity homes. Mealybugs lodge in leaf axils, and scale insects can colonise the decorative petioles. Root rot from overwatering — though not a pest — mimics many pest symptoms, so inspect above and below soil.

Silvery stippling on large leaf blades; fine webbing at petiole junctions; leaves yellow and fall prematurely Mist regularly or use a humidifier; shower the plant to wash off mites; apply neem oil spray weekly

White cottony deposits in leaf axils and where the petiole meets the corm; sticky honeydew residue Swab with isopropyl alcohol; spray with insecticidal soap, ensuring coverage inside all leaf joints; repeat every 10 days

Flat brown bumps on the striped petioles and stem; may be confused with the natural patterning — look for stickiness Scrape off; apply horticultural oil; wipe petioles with a neem-soaked cloth to smother remaining scales