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 Botanic Garden >> Gardening >  >> Question and Answer >> Pests

Houseplant Pests: Fungus Gnats, Not Silverfish

Tiny fast movers in ivy soil are fungus gnat larvae (not silverfish—silverfish are larger, don't live in soil). Flying adults confirm fungus gnats.

Cause & Cure

  • Overwatering → fungal growth → gnat larvae.
  • Fix: Dry top 1-2" soil between waterings.
  • Top-dress with sand/perlite.
  • Yellow sticky traps catch adults.
  • Bti drench (Mosquito Bits) if persistent.

No insecticide needed. Healthy watering prevents recurrence.

Pests
Stemmadenia (Milky Way Tree) White Underside Fungus: Downy Mildew Suspect
Persistent Fungus Gnats in Houseplants: Cultural and Biological Controls
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Fungus Gnats in Houseplants: Identification and Control
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Treating Powdery Mildew on Pentas
Strange Fungus in Antique Furniture: Identification and Safety
Dealing with Persistent Fungal Growth from Dead Tree Roots in a Bermuda Lawn
Common Houseplant Pests: Identification and Safe Control Methods
Houseplant Pests and Diseases: Prevention and Control
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