Identifying and Managing Multiple Houseplant Pests

A reader describes a three-year battle with pests that started with a dwarf banana plant. Symptoms included fungus gnats, gray crawling bugs in saucers, spider-mite-like webbing, and eventual plant loss. After moving, the pests appeared on furniture and new plants. The reader asks whether the "webby bugs" and gray bugs are the same, and how to eradicate them from the home.

Answer

You're dealing with at least three distinct pests:

• Fungus gnats – larvae live in moist, decaying soil; adults fly when disturbed.
• Gray crawling bugs – likely soil-dwelling creatures (e.g., springtails or mites) that don't feed on plants.
• Webbing pests – could be spider mites, mealybugs, or something else. Your description is too vague for a definite ID.

Few plant pests survive long without live plants. To proceed, please email clear photos to wcreed@HorticulturalHelp.com for accurate identification. In the meantime, remove all plant debris, vacuum thoroughly, and consider discarding heavily infested items.