Quick Kill Dunks kill mosquitoes for 30 days or longer when placed in standing water outdoors. Dunks will float in water and can be anchored with string to prevent them from being washed away. Alternate drying and wetting does not reduce their effectiveness.
Application of Dunks: Use 1 dunk/100 sq. ft. of infested water. Dunks also can be used as a pre-flood treatment in areas expected to become breeding sources.
Bti is a bacteria that controls mosquito and black flies in their larval filter feeding stage of development. The larvae die after consuming the bacteria that causes a disease specific to them but are harmless to all other forms of wildlife.