What's eating my alocasia scalprum?

Alocasia scalprum is a rare Philippine species with narrow, leathery leaves, cultivated almost exclusively as an indoor houseplant. Like all Alocasia, it is most vulnerable to spider mites in dry indoor conditions and mealybugs in leaf joints. Its thick leaves tolerate some pest pressure, but thrips can cause lasting scar tissue on the narrow blades.

Stippled, dull patches running along the narrow leaf blade; webbing at the base of the leaf in severe cases Mist frequently, raise room humidity, and treat with insecticidal soap or neem oil every 7 days for three weeks.

Waxy white tufts along the midrib and at petiole junctions; slow growth and yellowing Apply isopropyl alcohol directly to colonies, then follow with neem oil spray on a weekly schedule.

Bronze or silver streaking along the narrow leaf surface; tiny dark frass spots visible Remove and bag damaged leaves, isolate the plant, and spray with spinosad solution every 5–7 days for at least three applications.