What's eating my maranta 'fascinator'?

Maranta 'Fascinator' is a low-growing prayer plant houseplant most bothered by spider mites, which thrive in the dry indoor air this plant dislikes anyway. Mealybugs and fungus gnats are secondary concerns. High humidity and good air circulation keep the worst infestations at bay.

Pale yellowish speckling on upper leaf surfaces; delicate webbing across the underside; leaves eventually brown at edges. Keep humidity high. Shower the plant to wash off mites; apply neem oil or insecticidal soap spray to both leaf surfaces every 5–7 days for 3 weeks.

White fluffy colonies in leaf axils and along petioles; sticky honeydew drips onto lower foliage. Remove clusters with an alcohol-soaked cotton swab. Follow with weekly neem oil spray until there are no signs of live insects for 2 consecutive weeks.

Root damage from larvae in persistently moist soil; adult gnats fly around the plant and compost surface. Let the top inch of soil dry between waterings. Use yellow sticky traps; apply Bti (e.g., Gnatrol or Mosquito Bits drench) to the soil.