Eradicating Fungus Gnat Larvae in Sarracenia Seedlings: Mosquito Dunks, Soil Sterilization, and Sticky Traps

Mosquito Dunks (Bti)

Round dunks take ~3 days to kill larvae; permeating soil takes longer. Double the dose for heavy infestations. Top-water with dunk-soaked water to distribute toxin deeper.

Faster Knockdown

Mosquito Bits (granules) are stronger for quick reduction.

Chemical Resistance

Imidacloprid (Bayer) overuse has led to resistant fungus gnats in some areas.

Supplemental Controls

• Sticky traps or nearby sundews/butterworts catch adults.
• For severe infestations: boil fresh peat, cool, drain, and use as sterile medium. Cell-plug trays reduce soil volume and improve monitoring.