Ditch-plugging in salt marshes may reduce mosquito populations, benefiting nearby communities.
A study in Maryland's wetlands looked at mosquitoes in plugged and unplugged marshes. They found that wooded areas had more mosquitoes than marshes. The most common mosquito species were Aedes sollicitans, Anopheles bradleyi, and Culex salinarius. Plugging ditches in marshes changed the types of mosquitoes found. Mosquitoes preferred habitats with lower salinity. This suggests that wooded areas near marshes can be a big source of mosquitoes, and plugging ditches can affect mosquito populations.