What's eating my philodendron lynamii?

Philodendron lynamii is a rare Peruvian species grown indoors by collectors. As with most tropical aroids, spider mites pose the greatest threat in low-humidity indoor conditions. Mealybugs find its stem nodes and petiole bases attractive. Fungus gnats can be a problem if the substrate stays too wet. Vigilance is key with rare specimens.

Subtle pale stippling on leaves, fine webbing under leaves; damage is costly on a rare specimen Boost humidity, isolate immediately on detection, spray neem oil or insecticidal soap every 7 days

White cottony clusters at nodes and petiole joints; sticky honeydew attracts sooty mold Dab colonies with alcohol swabs, apply systemic neem soil drench for persistent infestations

Larvae in moist substrate damage fine feeder roots; adults visible around soil Allow top layer to dry, use yellow sticky traps, drench with Bti solution to kill larvae