Spring in Strafford County marks a significant seasonal transition. As snow melts, spring rain increases, and temperatures begin to rise, mosquito activity can emerge quickly across southeastern New Hampshire. While winter cold temporarily suppresses mosquitoes, many eggs survive in protected areas and hatch once moisture and warmth return.
In this region, what happens during early spring often determines how intense mosquito activity becomes later in the summer.
Mosquito eggs laid the previous season remain dormant until spring conditions allow them to hatch.
Snowmelt saturates soil and fills low-lying areas
Spring rain creates standing water in yards, ditches, and drainage systems
Rising daytime and overnight temperatures speed larval development
Under favorable conditions, mosquitoes can develop from egg to adult in as little as 7–10 days.
Standing water is essential for mosquito breeding, especially following snowmelt.
Spring preparation should focus on:
Clogged gutters and downspouts
Buckets, planters, tarps, and uncovered containers
Birdbaths and decorative water features
Low spots in lawns and near foundations
Window wells, drainage ditches, and culverts
Removing these water sources early prevents mosquitoes from completing their first breeding cycle.
As spring progresses, rapid plant growth creates shaded and humid environments mosquitoes rely on.
Early-season cleanup helps by:
Removing leaf litter and winter debris
Trimming shrubs, hedges, and overgrown vegetation
Reducing dense ground cover near patios and walkways
Improving airflow and sunlight exposure
Drier, more open yards are less attractive to mosquitoes.
Strafford County often experiences steady spring rain events.
Spring preparation includes:
Clearing storm drains and curbside inlets
Redirecting downspouts away from structures
Addressing areas where water consistently pools after rain
Good drainage reduces recurring mosquito breeding opportunities.
Spring preparation focuses on prevention rather than reaction.
Fewer early larvae lead to fewer biting adults later
Reduced adult populations lay fewer eggs throughout summer
Early intervention helps prevent exponential population growth
Once mosquito populations are established, reducing their numbers becomes much more difficult.
