The recent heavy rains across Wisconsin have significantly impacted mosquito populations. This has lead to heightened mosquito pressure in many areas of the state, particularly in regions such as the Driftless Area and the North Woods. State entomologist, PJ Liesch, provided insights into the current situation. He also offered valuable recommendations to both the public and farmers to mitigate mosquito bites and breeding grounds.
The abundance of standing water resulting from the heavy rains has created ideal breeding grounds for mosquitoes. Liesch noted that even in more urban and suburban areas, there is a noticeable mosquito presence this year.
Wisconsin is home to between 50 and 60 different species of mosquitoes. Liesch reassured that, despite the high mosquito activity, the incidence of mosquito-borne diseases like West Nile Virus remains relatively low in the state. “Some good news at this point is that I’ve been keeping an eye on the statistics for diseases like West Nile Virus, and things are really pretty good at the moment in terms of activity of that disease,” Liesch reported.
To help reduce mosquito populations and minimize bites, Liesch offered several practical recommendations:
- Eliminate Standing Water: “Reducing breeding habitats around your home or farm is crucial. Look for standing water in clogged gutters, low-lying spots, or even small containers like kids’ toys and bird baths. Changing the water in bird baths about once a week can make a significant difference,” Liesch advised.
- Wear Protective Clothing: Wearing long-sleeved clothing can provide a physical barrier against mosquito bites. “If they can’t get to you, they can’t bite you,” Liesch emphasized.
- Use Effective Repellents: Liesch recommended using EPA-registered repellents, such as DEET, picaridin, or oil of lemon eucalyptus. “These can be found at most hardware or sporting goods stores,” he said.
- Consider Mesh Suits or Head Nets: For those spending extended periods outdoors, especially during yard work, mesh suits or head nets can offer additional protection.
In addition to mosquitoes, the recent weather conditions have also led to increased activity from other pests such as earwigs and slugs, which have been causing damage in crop fields, home gardens, and ornamental plantings. Liesch advised farmers and gardeners to be observant and conduct thorough inspections after dark when these pests are most active.
