This summer, residents are noticing an increase in biting black flies, deer flies, and horse flies. University of Maine Cooperative Extension pest management specialist Jim Dill explains that the increase in these biting flies may be due to the more frequent short, intense rain events happening in Maine, creating ideal breeding conditions for these insects.
Deer flies and horse flies are breeding in standing water with decaying plant matter, while black flies prefer clean, fast-moving water. The wetter climate in Maine is also causing an increase in intense precipitation, which can lead to more standing water and breeding sites for these biting flies.
While heavy rain may not always mean more mosquitoes, it can create new breeding habitats in unexpected places, such as blocked gutters or overflowing receptacles that have collected algae. Additionally, heavy rain can lead to an increase in non-biting midges, which will disappear in a few days.
Different regions in Maine are experiencing varying levels of fly activity this summer, with some areas facing more flies than others. To combat these pesky insects, residents can try unconventional methods such as creating a baby oil-covered helmet trap or using a repellent made of Epsom salts, mouthwash, and stale beer.
Overall, the increase in biting flies this summer is a result of the changing climate and precipitation patterns in Maine. Residents are encouraged to take precautions to protect themselves from these nuisance insects while enjoying the outdoors.
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