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Summit Chemical Co.

In business for over 45 years, Summit Chemical has developed a reputation as an industry leader in biological mosquito control. The Baltimore, Maryland based company manufactures both bits and dunks made from BTI — a bacteria toxic only to mosquito and fungus gnat larvae.

  • Mosquito Bits

    Mosquito Bits

    Bti-coated granules are very effective against mosquito and fungus gnat larvae.

    $11.95 $9.95
  • Barley Straw


    Barley Straw improves water quality by reducing algae, other particles and odors.

    $9.95 $7.95
  • Mosquito Dunks

    Mosquito Dunks

    Kills mosquito larvae for 30 days! Will NOT harm people, pets, wildlife or fish.

    $7.95 $6.50
  • Mosquito and Gnat Barrier

    Mosquito & Gnat Barrier

    Keep your next outdoor gathering from being invaded by mosquitoes and gnats.

    $14.95 $10.95