Mosquito Dunks
I recently finished a subsection of the How to Get Rid of Mosquitoes page about Mosquito Dunks, these little donut-like, fibrous cakes you throw in standing water sources to make sure mosquito larvae don’t hatch into adults. They’re really quite the fascinating invention. Well, mosquito dunks are not really an invention but more of an improvement on nature’s design. You see, mosquito dunks are actually a medium filled with bacteria called Bacillus thuringiensis, and these bacteria attack the mosquito larvae, reducing the population of mosquitoes considerably–if they’re used by you and your neighbors as part of a community effort to control mosquitoes.
Mosquito dunks are fairly harmless. They don’t kill much of anything else besides mosquitoes because the bacteria are of species that will only infect mosquito larvae (as far as I know). Of course, you don’t want to just plop one of these in your Britta waterfilter and consider yourself safe, but they’re safe enough to put into small ponds, creeks, untreated pools, and just about any mosquito breeding spot you can think of.