Mary from Saint Louis, Mo writes
BTI Mosquito Dunks are safe for birdbaths, old automobile tires, rain barrels, abandoned or unused swimming pools (particularly above ground types), tree holes, roof gutters for collecting rainwater, flower pots, animal watering troughs, elevator shafts, basements that flood, sump pumps and any drainage areas within buildings. One briquet treats up tp 100 sq ft of water.
Answer last updated on: 05/06/2016
