What's eating my syngonium neon robusta (pink arrowhead)?

Syngonium 'Neon Robusta' is most commonly attacked by spider mites in dry indoor conditions. Mealybugs exploit the dense leaf axils, and fungus gnats colonise overwatered soil. The soft, lush pink foliage is particularly attractive to spider mites — maintaining humidity above 50% is the primary defence.

Fine webbing and pale stippling on leaf undersides; leaves lose colour and vibrancy, dulling the pink tones Mist foliage regularly, increase ambient humidity, and spray with diluted neem oil or insecticidal soap weekly until clear

White cottony fluff in leaf joints and along stems; leaves yellow and growth slows Swab with 70% isopropyl alcohol; apply neem oil systemically; quarantine from other plants and re-check weekly

Larvae damage roots in moist soil; adult gnats are a nuisance; seedlings and young plants most at risk Allow topsoil to dry between waterings; use yellow sticky traps for adults; drench soil with diluted neem oil or a BTi (Bacillus thuringiensis israelensis) solution