Easily and effectively control mosquito larvae and reduce the population of adult mosquitoes in your area with Summit Mosquito Dunks. This eco-friendly solution is safe for all forms of wildlife, pets, fish, and humans. Conveniently apply Mosquito Dunks® to standing water or water gardens for quick results that last over 30 days. It is even labeled for organic gardening by the USEPA. Highly effective with minimal impact.