Mosquito Science Mosquito Killer 30 oz. size. Naturally-based, safe, biodegradable. Dual action - kills mosquito larva in water, repels adult mosquitoes for up to 8 weeks. Effective control that biodegrades without persistent toxic chemicals, bacterial toxins or insect hormones.

Recommended Application for Mosquito Killer: Use in and around mosquito-bearing still waters, including ponds, ditches, water impoundment, marshes, swamps, puddles and artificial water sources such as birdbaths, tires, tree-holes, gutters, cans or debris. Also for use in areas subject to tidal water, seepage, overflow, flooding, snowmelt or rainwater.

Recommended Application for Mosquito Killer: Use in yards, parks, playgrounds, schools, golf courses, and other areas where mosquitoes may congregate.