What's eating my burgundy rubber plant?

Burgundy Rubber Plant (Ficus elastica 'Burgundy') is an indoor tropical. Spider mites are the top threat, thriving when indoor air is dry. Mealybugs nestle in leaf axils, and scale insects encrust stems. Fungus gnats breed in overwatered compost. The thick, glossy leaves resist minor infestations well if the plant is kept clean and humidity is adequate.

Fine stippling and bronze/yellow speckling on the upper leaf surface; fine webbing under leaves and in stem joints; leaves may drop in severe cases Increase humidity; wipe leaves with a damp cloth regularly; spray with neem oil or insecticidal soap, covering undersides; isolate affected plants; introduce Phytoseiulus persimilis predatory mites

White, cottony wax clusters in leaf axils and along midribs; sticky honeydew and sooty mould; leaves yellow and drop Dab individual colonies with a cotton bud dipped in 70% isopropyl alcohol; spray with neem oil or insecticidal soap; repeat every 7-10 days; introduce Cryptolaemus beetles for heavy infestations

Brown, waxy, limpet-like bumps on stems and the underside of leaf midribs; honeydew drip and sooty mould on lower leaves Scrape off with a soft toothbrush; wipe with a cloth dampened in neem oil solution; use a systemic houseplant insecticide for heavy infestations; repeat at 2-week intervals

Tiny black flies hovering around compost; larvae in soil eat fine roots and root hairs, causing wilting in seedlings or stressed plants Allow compost surface to dry between waterings; apply pathogenic nematodes (Steinernema feltiae) to moist compost; use yellow sticky traps to monitor and reduce adults; top-dress with a layer of horticultural grit