What's eating my chain cactus?

Chain Cactus (Rhipsalis paradoxa) is a jungle epiphytic cactus grown indoors in humid conditions, making it slightly less prone to spider mites than desert cacti but still vulnerable to mealybugs at its intricate chain-like joints. Fungus gnats appear if the loose airy mix stays too wet. Scale and aphids occasionally attack.

White waxy tufts at the angular chain joints and near the growing tips; distorted new growth Apply isopropyl alcohol with a fine brush at every joint; repeat every 7–10 days; quarantine plant

Small brown bumps on stem segments; sticky honeydew residue on the trailing stems below Scrape off with a soft brush; follow with neem oil spray; check again after two weeks

Adults hovering near the pot; larvae in overly moist epiphytic mix damage fine surface roots Allow the top layer of mix to dry between waterings; use sticky yellow traps; apply Bti drench if persistent