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Fungus Gnats on Dieffenbachia: Same Cure—Dry Out, Alcohol, Perlite

Identical to Mass Cane Solution

Gnats and larvae = overwatering. Alcohol soil drench, then dry until pot feels light. Water thoroughly, empty tray at 2 hours. Next repot: ½ soil, ½ perlite. Keep drier.

House Plants: Gardenia Indoor Care: Bloom Maintenance and Reblooming Challenge; Spider Plant Root Rot from Annual Soil Washing & Queen of the Night Blooming Tips; Tiny White Bugs in Prayer Plant Soil: Symptom, Not Cause; Philodendron Soil Mold: Lysol and Perlite Fix; Kalanchoe Pinnata ID and Care: Succulent with Plantlets; Dracaena 'Lemon-Lime' Brown Spots: Overpotting Is the Cause; Canela Plant (Cinnamon) Recovery: Light, Water & Whitefly; Overwintering Mandevilla Indoors: Digging, Potting, and Dormant Care; Anthurium Worms in Soil: Fungus Gnat Larvae from Overwatering; White Mold on Houseplant Soil: Harmless but Fixable

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