The West Valley Mosquito and Vector Control District office will be closed on Wednesday, December 24th, and Thursday, December 25th. Regular office hours will resume on Friday, December 26th. Have a happy and safe holiday!

Get a jump on next season's mosquito population by eliminating activity in your gutters. For more tips on mosquito prevention, please visit our website.

Prevent mosquitoes from hibernating in your home! Check for any signs of mosquito activity. For more information, please visit our website.

Don't wait for mosquitoes, prevent them now! Mosquitoes are already making their plans for next season. Stop them before they do!

Don't let mosquitoes hibernate in your house! Prevent overwintering and mosquitoes next season.

Mosquitoes will seek shelter from winter weather - so don't give them any chances!

As winter comes in, now is the time to "Winterize your yard against mosquitoes"!

The West Valley Mosquito and Vector Control District office will be closed on Thursday, November 27th, and Friday, November 28th. Regular office hours will resume on Monday, December 1st. Have a happy and safe Thanksgiving holiday!

The West Valley Mosquito and Vector Control District is thrilled to spread Thanksgiving joy with a donation to the Chino Neighborhood House!

After the rain, remember to dump and drain any water that may have collected in your yard. Standing water can be sneaky, so check carefully for hidden and unsuspecting sources! For more information on how to prevent mosquitoes, please visit our website.

Rain is on the way, so let’s get ahead of it and stop standing water and mosquito breeding! Flip over any buckets and pots to prevent water from collecting, and check that your drains are clear. For more tips on keeping mosquitoes away, check out our website!

The West Valley Mosquito and Vector Control District office will be closed on Tuesday, November 11th. Regular office hours will resume on Wednesday, November 12th. Have a great day, and stay safe!

There were no positive mosquito samples for the week! Everyone, stay safe and wear repellent when outdoors.

There were no positive mosquito samples for the week! Everyone, stay safe and wear repellent when outdoors.

We have one more creepy crawler to share with you! This fascinating creature, known as the stick bug, truly lives up to its name. Stick bugs are creepy-looking insects that can grow up to 2 feet long, but don't worry—they mainly feed on plants.

No costume for tonight? Try this last-minute frog costume, one of the mosquito's natural enemies! Start by getting a green shirt and matching pants. Then take two paper plates and draw the eyes. Finally, attach the plates to a headband and boom! You're ready for a night of tricks and treats.

This Halloween you can go as our hero, the Vector Control Technician! Grab some khakis or cargos, button down long-sleeve, safety vest (optional). Print your logo, attach a 2 to 3 foot dowel to a paper cup (a larval dipper) and get ready to seek and destroy those mosquitoes (or candy corn)!

Oddly shaped and brightly colored, planthoppers are truly terrifying - if you are a plant! Some species can transmit bacteria and viruses to plants, like the mosquito of the plant world!

Get ready for another creepy crawler! The leaf-footed bug might look a bit scary with its unique shape, but don't fret! These little critters are more interested in munching on plants than causing any trouble.

Looking for last-minute costume ideas? Try being a mosquito's favorite treat this Halloween! First, grab a red shirt and label it "O+". Then print out some mosquitoes and magnets to complete the look, you'll be irresistible to those pesky blood suckers!

Here is another creepy critter! Looking like a Frankenstein bug made of a horse and a scorpion, scorpion flies are harmless scavengers that help clean up the environment. That tail looks imposing, but is harmless - they use their tail to attract a mate and fool predators!

Need a costume idea? Go as the most annoying critter - the ankle biter! Get some cheap sunglasses, chopstick, some masking tape, and some foamcore board for the wings and you'll be a true vampire!!

Get ready to embrace the spooky spirit of Halloween with these creepy crawlers! If you're getting bugged by blood-suckers, please call the West Valley Mosquito and Vector Control District office. Website: www.wvmvcd.org Phone: (909) 635-0307

Don't forget your spooky Halloween costumes! Here is a last-minute costume idea to scare away those pesky mosquitoes. To learn more about mosquitoes and mosquito prevention, please visit our website. Website: www.wvmvcd.org Phone: (909) 635-0307

There were no positive mosquito samples for the week! Everyone, stay safe and wear repellent when outdoors.

There were no positive mosquito samples for the week! Everyone, stay safe and wear repellent when outdoors.

After the recent rain, remember to dump and drain any standing water to prevent mosquito breeding! To learn more about mosquitoes and how to prevent them, please visit our website.

Do not forget that after the rain, pots, saucers, bins, buckets, and more can fill up with water and become a mosquito breeder! Check around after the rain and stop them quick!

There were no positive mosquito samples for the week! Everyone, stay safe and wear repellent when outdoors.

There were no positive mosquito samples for the week! Everyone, stay safe and wear repellent when outdoors.

If you live in our district and have a large pond or water garden, you can request mosquito fish from the District to help control mosquito larvae in your yard. For more details, please visit our website!

There were no positive mosquito samples for the week! Everyone, stay safe and wear repellent when outdoors.

Prevent mosquitoes from breeding in your home by adding gravel to vases and planters to remove standing water. To learn more about mosquito prevention, please visit our website!

There were no positive mosquito samples for the week! Everyone, stay safe and wear repellent when outdoors.

Rain is expected tomorrow! To help prevent mosquito breeding, take proactive measures such as clearing gutters and flipping over pots to eliminate standing water. For more information about mosquitoes and how to prevent them, please visit our website!

Be on the lookout for backyard breeding sources and remember to eliminate standing water inside your home to help prevent bites! To learn more about mosquitoes and how to prevent breeding, please visit our website.

West Nile Virus Update: Positive mosquito samples were found in Chino. Wear repellent outdoors, dump and drain standing water, and call us for mosquito concerns.

Garden decor like fountains can become a breeding source for mosquitoes if left unmaintained. Please visit our website to learn more about mosquitoes and how to prevent them!

Keep mosquitoes at bay this fall by removing standing water around your home, remember to check carefully for hidden sources! Please visit our website to learn more about mosquitoes and how to prevent them!

Good news, remember to wear a repellent - have a great weekend!

Fall is just around the corner, and mosquitoes are still active! Remember to wear repellent when you're outdoors to prevent mosquito bites. For more details on mosquito prevention, visit our website!

Fall is almost here, but mosquitoes are still out! Please dump and drain any standing water to prevent mosquito breeding in your home. For more information on mosquito prevention, please visit our website!

The West Valley Mosquito and Vector Control District office will be closed on Monday in observance of Labor Day. Regular office hours will resume on Tuesday, September 2nd. Have a great day and stay safe!

There were no positive mosquito samples for the week! Everyone, stay safe and wear a repellent when outdoors.

After this weekend's rain, make sure to dump and drain any standing water in your backyard! It's a simple but important step to help prevent mosquito breeding. For more helpful tips on mosquito prevention, feel free to visit our website.

West Nile Virus Update: Positive mosquito samples were found in Ontario. Wear repellent outdoors, dump and drain standing water, and call us for mosquito concerns.

Please join us for the final Ontario Concert in the Parks Event tonight! The West Valley Mosquito and Vector Control District will have a booth filled with helpful tips and tricks to help you keep mosquitoes away this season!

Thank you for joining us for World Mosquito Day and for providing us with great questions! If you want to learn more about mosquitoes and how to prevent them, please visit our website!

Here is another fun question for World Mosquito Day! To learn more about mosquitoes and how to prevent them, please visit our website!

Welcome to World Mosquito Day! Join us today as we answer your questions about mosquitoes. To learn more about mosquitoes and how to prevent them, please visit our website!