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F.A.Q.

How often should I get my yard sprayed for mosquitoes?

It’s best to treat for mosquitoes every two to three weeks throughout the active mosquito season. The season usually runs from April through October in the Chelmsford and Cambridge area.

If you are wondering if a single treatment will handle all your mosquito problems for the summer, the answer is that it will probably not. Mosquitoes only need 7–10 days to hatch the next generation, and barrier treatments last for about three weeks at a time. Even short gaps in coverage can give the mosquitoes a chance to regroup.

A single female mosquito can lay 100 to 200 eggs at a time. That, plus the short time to birth, means a new generation of mosquitoes will emerge on your property roughly every week to week and a half throughout the summer. One treatment knocks the population down dramatically, but not permanently, as the survivors can rebuild.

As for the treatment, it needs to be reapplied every two to three weeks. The treatment works because it bonds to vegetation where mosquitoes rest during the day. But over time, sun and rain exposure break down the natural product. 

It’s also worth knowing that the effects compound over time. The first treatment of the season controls the existing population. The second treatment controls what's emerged since the first. By the third and fourth treatment, you've prevented a lot of breeding cycles from happening, which means the population will be much smaller than it otherwise would have been.


If you are a homeowner in Chelmsford or Cambridge, and you’re tired of dealing with mosquitoes, Mosquito Squad of Chelmsford & Cambridge can help. This can be done through treatments applied every two to three weeks from spring through fall. A trained technician will come to your property, walk the yard, and figure out where the trouble spots are. Then they will create a custom plan based around what they find, treat, and come back every three weeks to re-treat and make sure coverage never lapses.

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