mosquito season is back with a vengeance in ontario and elsewhere this year, thanks to temperatures that went quickly from cold to hot – remember that heat wave in early april? – causing a lot of standing water from melted snow. add to that a few rainy days, and conditions are ripe for the biting, blood-sucking, disease-carrying critters to lay their eggs in those stagnant pools and start multiplying.
but recently, a tiktok user named finch (@afinchmerely)
posted a video touting the benefits of mosquito dunks, a simple just-add-water product that stops mosquito larvae from becoming adults.
“it’s almost the end of may, i’m hanging out in my backyard, and i have not gotten a single mosquito bite,” she says happily, before showing off a “nasty bucket of water,” full of grass clippings and a small puck-like object: the mosquito dunk.
“that dunk keeps them from maturing,” she adds. “the mosquitoes come lay their eggs here, and then that is the end of their line. and i get to enjoy my back yard.”
mosquito dunks, which sometimes go by the name insect briquets, contain bacillus thuringiensis serotype israelensis, a group of bacteria that produces toxins that are effective in killing various species of mosquitoes, gnats and blackflies, while having almost no effect on other organisms.