Heavy rains lead to increased mosquitoes

Mosquito on blade of grass at Mosquito Hill Nature Center, July 24, 2018 (WLUK/Eric Peterson)

(WLUK) -- Adding to the list of unfortunate effects of the recent heavy rains in the state is the increase of mosquitoes.

The Wisconsin Department of Natural Resources says mosquito populations have surged as mosquito larvae can develop in standing water.

To help control them, here are some tips from the DNR:

  • Remove and dispose of trash that is holding water such as old tires, sagging plastic bags, or any water-holding containers.
  • Make weekly inspections of water in flower pots and plant containers for stagnant, standing water or the presence of wrigglers.
  • Change the water in bird baths and wading pools frequently. Drain them when not in use.
  • Unclog rain gutters so water doesn't pool.
  • Drain and fill stagnant, puddles, ditches, or any wet areas around your home and property.
  • Clear weeds and vegetation away from the edges of ponds, near houses, and in nearby lots - adult mosquitoes hide in them.
  • Biological control products containing Bti, a natural mosquito larvicide, may be purchased online and at most lawn and garden stores. These products, which are usually donut-shaped or comes as pellets, are placed in standing water to kill mosquito larvae. They control mosquito larvae for up to 30 days but are harmless to people, pets, birds, fish, and other wildlife. Always follow directions on labels.
  • Cover cisterns, cesspools, septic tanks, fire barrels, rain barrels, and tubs tightly.
  • Use sand to fill in tree holes.
  • Remove tree stumps that hold water.

Officials also suggest that if you do go outside at dawn or dusk, when mosquitoes are most active, you should wear light-colored clothing that covers your arms and legs. Using repellents also helps as well as a citronella can, if the air is still.

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