Control mosquitoes biologically with B.T.I. Briquettes. These two-inch floating rings contain bacillus thuringensis, which is consumed by mosquito larvae and kills them. Use in places where mosquitoes breed such as :- ponds, bird baths, unused swimming pools, flower pots, rain barrels, old tires, and any other place where water collects. They are also known as Mosquito Dunks

One BTI briquette containing bacillus thuringiensis controls mosquitoes for 30 days in 100 square feet of water surface, regardless of depth. Use 1/4 ring for small surfaces up to 5 square feet, and 1/2 ring for surfaces up to 25 square feet. Sold in cards of 20 rings.

Use Bacillus thuringensis to treat mosquito ridden swamps, ditches, creeks and ponds in your area and watch the population of mosquitoes fall. You can even pre-treat areas known to flood by staking down a briquette every 100 square feet.

BTI is pet safe, harmless to children and the environment.
BTI Briquettes containing bacillus thuringiensis is a non-toxic product, but is not approved for use in water intended for human consumption.

Waste Water Treatment Plants Mosquito control
Suspend a basket filled with Bacillus thuringensis briquettes to ensure a steady flow of B.T.I into the filter. (Number of briquettes required depends upon the size of the plant and the flow rate.)