Where are Vermont’s worst mosquitoes?

There are only two mosquito control districts (MCDs) in Vermont: the Brandon-Leicester-Salisbury-Goshen-Pittsford District (BLSG) and the adjacent Lemon Fair District. Mosquitoes are present throughout Vermont, but the lonely presence of these two MCDs suggests there might be a lot more mosquitoes in this part of the state. Indeed, the broad floodplain of Otter Creek runs right through the two districts, and thousands of acres of wetlands and low-lying agricultural fields there can be prime breeding grounds for mosquitoes.  

Finding evidence to confirm that there are more mosquitoes there than elsewhere in Vermont is difficult. The Vermont Agency of Agriculture has been trapping mosquitoes throughout Vermont for several years and now has traps in every county and in more than 83 of the state’s 237 towns. Unfortunately, that trapping program is not designed to document how many mosquitoes are present. Its primary goal is to collect mosquitoes to analyze for mosquito-borne diseases. A preliminary analysis by the Agency of Agriculture indicates that traps in Grand Isle County captured a lot more mosquitoes than in either Rutland or Addison Counties. But there does not seem to be reliable scientific evidence that the BLSG District has either more or fewer mosquitoes than elsewhere in Vermont.

If the BLSG District is not the buggiest area in Vermont, why are the only MCDs in the state there? Could it be nothing more than an historical accident?

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Trending pests

When you search for a topic with Google, you get a list of websites related to your topic. When you search for a topic at Google Trends, you get a page of metadata about who else has searched for that topic. Organic Lesson just posted a story about their searches at Google Trends for the searches people do for ways to deal with pests.

According to this story, in the US in 2018, the pests that most bothered people into searching for remedies were flies, ants, and bedbugs. Mosquitoes were number four:

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The BLSG district

The BLSG Insect Control District includes the towns of Brandon, Leicester, Salisbury, Goshen, and Pittsford. We are not the only insect control district in Vermont, but we are the only one where pesticides are sprayed to control adult mosquitoes. In addition to treating many acres of standing water to kill mosquito larvae, malathion or permethrin are sprayed in a fine mist from a slow moving truck along some town roads.

Below is a map of the five towns currently in the BLSG district.