Why Are Mosquitoes in Monrovia All Year Long?

In Monrovia, you’re not used to wearing a heavy coat. It’s warm all year. Even heading outside in December promises a high of 60F, and temperatures rarely drop below freezing. You walk charming, tree-lined streets tucked gracefully into the San Gabriel mountains. Everything that surrounds it is beautiful to look at. It’s why you love it here.

And unfortunately, that’s exactly why mosquitoes love it here, too. In fact, mosquito season never really stops. So, that’s why, at times, you’re swatting and itching even when it’s wintertime. And when you’re trying to enjoy your outdoor spaces, it becomes more than just a little nuisance. 

So, why do mosquitoes love to stick around all year in Monrovia? 

Invasive Mosquito Species

First off, there are invasive day-biting mosquitoes in Monrovia. They’ve established themselves in the San Gabriel Valley for quite some time, staying active all year as long as temperatures stay above 50F. These guys leave you wondering why you have mosquito bites in broad daylight. 

They are the Aedes aegypti and Aedes albopictus species, known for their aggressive nature and ability to breed in very small amounts of water. Small, but resourceful, they will stop at nothing to find water to breed in. All it takes is a bottle cap, plant saucer, drip irrigation pooling, or even folded tarps for them to multiply. Because of these tendencies, they make it feel like you never get a break from the buzzing and biting. 

Culex Mosquitoes

On top of the invasive mosquito species, you also have your run-of-the-mill mosquito (Culex) that love to come out at dawn and dusk. While the aggressive day-biters harass you during the day, the Culex mosquitoes take the night shift. Having a bonfire or evening barbecue usually includes this uninvited guest. 

They are especially active during the warmer months, overlapping with Aedes species. This way, they have you surrounded with constant mosquito pressure. Not the best way to plan a party or other outdoor event.

Monrovia’s Landscaping

Walking through Monrovia is like a step back in time as you look through the historical neighborhoods with mature trees. Its beautiful yards covered with lush landscaping leave most people swooning. But, mosquitoes like it too (just for different reasons). 

Lush greenery requires a lot of irrigation, which creates constant moisture. And constant moisture is the mosquitoes’ ticket to sustained life, even during dry months. Extra irrigation water also causes standing water in low spots, which mosquitoes gravitate to like a magnet. Also, mosquitoes use greenery to rest in the heat of the day, giving them plenty of shelter from the hot sun. So, your landscaping gives them everything they need to rest, reset, and multiply. 

Year Round Mosquito Activity = Year-Round Treatment

Since mosquito season lasts all year in Monrovia, year-round mosquito control is a must. In other parts of the country, seasonal treatment works, but not in Monrovia. For your property, consistent treatment will compound over time and keep mosquito pressure at bay. Seasonal treatment will only manage to battle the swarms as they come (which is always an uphill battle). 

That’s why Mosquito Squad of Pasadena provides recurring mosquito protection through Barrier Treatment Plus. It keeps you covered up to 21 days between treatments, and we always come back consistently to maintain your treatment. 

Extra tip: If you eliminate even small sources of standing water around your home, it perfectly complements professional treatment. This way, your yard finally will be the peaceful retreat you deserve. 

Tired of dealing with mosquitoes in Monrovia every month of the year? Call Mosquito Squad of Pasadena at (213) 238-5564 or contact us online for a free quote.