Esther E. McGinnis, Horticulturist

NDSU Extension

Every northern state jokes that the mosquito is its state bird. However, mosquitoes are no laughing matter. They vector West Nile disease in the north and much worse diseases further south.

People will go to great lengths to kill mosquitoes. The “mosquito buckets of doom” social media trend is promoted as a pollinator-friendly alternative to insecticidal yard fogging. However, the online debate over its effectiveness is fierce. The truth is more complicated and needs additional research.

The mosquito buckets of doom entail creating an ecological trap for egg-laying mosquitoes. The method calls for placing a dark-colored bucket in the shade, filling it half-full with water and a handful of leaves or grass clippings to create a malodorous brew to attract female mosquitoes to lay their eggs. Mosquito dunks or Bti (Bacillus thuringiensis subsp. israelensis) are added to the bucket and replaced at regular intervals. The buckets are then covered with netting or a lid with holes to prevent children and animals from drowning.

Bti is a natural soil bacterium used as a biorational pesticide to kill mosquito, fly and fungus gnat larvae. Mosquito control districts across the nation use this product for larval management, and it has a proven track record. While nontoxic to humans, pets and pollinators, Bti kills mosquito larvae in a unique way. When ingested, Bti produces a sharp, crystal protein that perforates the larvae’s gut, resulting in starvation. Yes, that is a little graphic, but I imagine that you aren’t feeling too sympathetic for the mosquito that left an itchy welt on your ankle.

However, here is where the story gets more complicated. Not all mosquito species will lay their eggs in buckets. In North Dakota, we have more than 40 species, while Florida has over 80 species. Some species prefer to lay their eggs in natural areas such as wet soil, wetlands or tree hollows. However, the buckets can attract residential and urban species that lay their eggs in gutters, flower pots and barrels, resulting in a population reduction. Thus, the buckets can have varying results based on residential development, species composition and region.

Furthermore, mosquitoes don’t lay all their eggs in one place (or bucket). They’ll lay 50 eggs here and 50 eggs there. If there are other standing water sources on your property, they can still serve as mosquito breeding grounds. To make matters worse, mosquitoes can fly from miles away to bite you.

The mosquito bucket trend also doesn’t account for human nature. For the buckets to function, the mosquito dunks need to be replaced every three to four weeks because they lose effectiveness over time. Families are busy during the summer. If they forget to regularly replace the mosquito dunks, the buckets can become breeding grounds for more mosquitoes.

In short, mosquito buckets of doom are not a silver bullet for mosquito control and more local research is needed. If you intend to use a mosquito bucket, be diligent about removing standing water on your property and clearing your gutters (amazingly, mosquitoes can lay eggs in a water-filled bottle cap!). Also, wear EPA-approved repellents in areas of dense populations.

NDSU Agriculture Communication – July 14, 2026

Source: Esther McGinnis, 701-231-7406, esther.mcginnis@ndsu.edu

Editor: Dominic Erickson, 701-231-5546, dominic.erickson@ndsu.edu