What's eating my anthurium coriaceum?

Anthurium coriaceum is a large-leaved tropical aroid grown as a collector's indoor specimen. Its leathery leaves are tougher than velvet-leaved species but still susceptible to spider mites in dry air, mealybugs in leaf axils, and scale insects on its thick petioles. Maintain high humidity and inspect new growth regularly to catch infestations early.

Pale yellow stippling on the upper leaf surface; fine webbing on undersides in dry conditions. Wipe leaf undersides with a damp cloth; apply neem oil spray; raise humidity with a humidifier or pebble tray.

Cottony white clusters at leaf bases and petiole joints; honeydew encourages sooty mould growth. Dab with isopropyl alcohol; spray with insecticidal soap; repeat weekly until no new colonies appear.

Hard or waxy bumps along petioles and mid-ribs; leaves yellow and plant vigour declines. Scrape off with a soft toothbrush; treat with neem or horticultural oil; isolate from other plants.