Summit Mosquito Dunks for Biological Mosquito Control Pond Water Treatment - 2 Pack

• Safe for fish ponds and animal troughs
• Kills mosquito larvae in standing water
• Use in flower pots tree holes bird baths water gardens rain barrels roof gutters and unused swimming pools
• Keeps working for 30 days and longer
• Made in the usa

INGREDIENTS: Bacillus Thuringiensis Sub-Species Israelensis Primary Powder(7000 Aedes Aegypti (Aa) International Toxic Units (Itu) Per Milligram Primary Powder (Dry Weight Basis).