What's eating my sansevieria canaliculata?

Sansevieria canaliculata, with its narrow cylindrical leaves, is vulnerable mainly to mealybugs lurking deep in the grooves and leaf bases, and to spider mites in dry air. Its succulent nature means fungus gnats become a risk if overwatered. Root rot from soggy soil is the biggest non-pest threat; combined with pests, it is rapidly fatal.

White cottony residue hidden in the cylindrical leaf channels and at soil level Dab with isopropyl alcohol; unpot to check for root mealybugs; apply neem soil drench

Pale patches and fine webbing on cylindrical leaf surfaces; tips brown off Wipe leaves, raise humidity, spray with neem oil or insecticidal soap weekly

Larvae damage fibrous roots; adults emerge from compost after watering Water only when soil is completely dry; apply Bti (e.g., Gnatrol) as a soil drench