Soil Pests in Schefflera: Fungus Gnats and Springtails

A two-month-old Hawaiian schefflera showed leaf drop and tiny bugs in the soil that surfaced when disturbed. The owner wondered about overwatering and repotting.

Identifying the Culprits

Tiny soil-dwelling bugs are often:

• Fungus gnat larvae (worm-like, feed on decaying matter and roots)
• Springtails (tiny, jump when disturbed, generally harmless but indicate excess moisture)

Both thrive in constantly wet soil.

Immediate Treatment

Water once with straight rubbing alcohol—it kills soil insects without harming roots. Ensure the pot has drainage and empty the saucer within hours of watering.

Cultural Corrections

• Light: Place directly in a south-facing window, blinds open all day.
• Watering: Let soil dry completely (pot feels light) before watering again.
• Repotting: Wait until after April 1st. Move to a pot only 2 inches larger. Scheffleras prefer being slightly root-bound.

Correcting moisture and light will eliminate the pests naturally and restore plant vigor.