The Woodlands Township Mosquito Surveillance Program indicates disease activity is widespread with over half (56%) of zones and 9 of 10 Villages returning a mosquito sample positive for West Nile virus (WNV). The next two weeks continue the typical peak of WNV activity in the mosquito population – please be vigilant in taking personal protective measures. There has been one reported human case of WNV in north Texas, according to the state press release.
Access the treatment map and schedule for South Montgomery County here and for Harris County here.
The mosquitoes that carry WNV are more active at dusk, dark, and the early dawn hours. Consider changing your routine if you are normally outdoors during these times, or create a barrier by covering up skin with long sleeves and pants.
Drain after rain to deny mosquitoes a place to lay their eggs and reproduce. Empty out water that accumulates in toys, tires, trash cans, buckets, clogged rain gutters and plant pots.
Treat water you do keep – in bird baths, rain barrels, and ponds – with non-toxic Mosquito Dunks®. Cheap, easy, and safe for pets and wildlife, you can find them at your local hardware store.
More Tools to Mosquito-Proof Your Patio
Here is information about why an oscillating fan works well and why we recommend garlic barrier, just two of the suggestions in the Mosquito-Proof Your Patio series. Use this handy guide to check your yard for other places mosquitoes might be lurking.
To report a problem area or to request more information, contact the Environmental Services Department at email@example.com or call 281-210-3800.
Pools are open and grills are going, but are you cooking up a breeding ground for mosquitoes? Make your yard a mosquito-free zone: clear roof gutters of debris; drill holes in the bottom of yard debris containers ; clean pet water dishes and bird baths at least once a week; check and empty children’s toys; repair leaky outdoor faucets.
Why is this important?
The Woodlands Township Mosquito Surveillance & Education program recorded the first positive sample for West Nile virus in Panther Creek earlier this month. South Montgomery County Mosquito Abatement responded by spraying about a square-mile area. Take a minute to access this map and input your address to see which zone you live in. Residents of Creekside Park can check the Harris County Treatment Map.
This is a normal time of year to see the start of disease activity in local mosquitoes, and serves as a reminder to do a check of your property for items holding water and protect yourself when outdoors.
The American Mosquito Control Association (AMCA) recommends people follow the three D’s to keep mosquitoes away:
Drain: Empty out water containers at least once per week
Dress: Wear long sleeves, long pants, and light-colored, loose-fitting clothing
Defend: Properly apply an approved repellent such as DEET, picaridin, IR 3535 or oil of lemon-eucalyptus
Joseph Conlon, AMCA Technical Advisor, says, “Encouraging your neighbors to also eliminate sources on their own property is critical to a community-wide control program. Mosquitoes require water to complete their life cycle. If their water source is eliminated, so are their offspring.”
He further states, “we must be prepared to prevent their spread throughout our public health landscape – and this requires safe, effective, sustained mosquito control and awareness in the community.”
So take a moment to check these simple ways to mosquito-proof your patio and make your next grilling session much more pleasant. Are your neighbors aware it’s just that easy? Share with them and increase the mosquito-free zone around your house even more. Collectively you can make a difference to Fight the Bite and reduce the risk of mosquito-borne diseases, like West Nile Virus.
There are two ways to guarantee that mosquitoes won’t bite you.
Get a shield
Let’s start with number 2 first. What if I told you that there is a magical coating that cloaks you from marauding hordes of blood-sucking mosquitoes, no matter where you go? An invisibility cape that takes about 20 seconds to put on. Would you wear it? Like standing upwind of a deer hides your location, wearing repellent has a similar effect when mosquitoes try to track down their next target, as explained here in How mosquitoes find you.
The biggest problem with the efficacy of repellent is that people don’t wear it. If you are complaining about mosquitoes and not wearing repellent, you may as well criticize the government but not exercise your right to vote.
Here are the top 3 reasons people give for not wearing mosquito repellent:
Certainly some repellents are more heavily scented than others (we’re looking at you DEET), but two have almost no smell at all. Look at the front of the bottle and go for one that contains picaridin or IR3535 (also sometimes listed by its chemical name, ethyl N-acetyl-N-butyl-ß-alaninate). If odor is your issue, these are the two you want.
It doesn’t work
There are people at universities that make a living studying the effectiveness of mosquito repellents. One thing they can agree on is that there are 4 effective active ingredients.
Have you tried each of these? Not everyone will find the same one the most effective. Keep trying until one works for you; it might not be the same one that works for your friends. Also, note the percentage of active ingredient. It tells you how much of every spray is actual cloaking juice. The more active ingredient, the longer it will repel before you need to reapply. If you’re out where ticks are also abundant, choose one that is effective for both and more highly concentrated.
Oil of Lemon Eucalyptus
15 to 20%
15 to 20 %
30 to 40%
10 to 30%
Mosquitoes and Ticks
Mosquitoes and Ticks
> 2 months
> 2 months
> 3 years
> 2 months
Synthetic version of piperine, found in group of plants that produce black peppercorns
Structurally similar to the natural substance β-alanine – a component of pantothenic acid (vitamin B5)
Derived from lemon eucalyptus tree branches and leaves or a synthetic version of the same (PMD)
Synthetic repellent invented by the US Army for use by military personnel in insect-infested areas
Does anyone want to expose themselves to harmful substances? Of course not. Rest assured that repellents are approved through the EPA and safe for use – read the label. If you use fabric softener, you are exposing yourself to more unknown chemicals formulations than you would be with repellent. Some people are sensitive to DEET and can develop a rash. If the concern is to find a more “natural” mosquito repellent, then check out oil of lemon eucalyptus. It’s derived from an actual lemon eucalyptus tree, but standardized so that the same amount of active ingredient is in each batch. See this previous postfor guidelines on using repellents safely.
Back to Number 1
When weighing all the options to reduce the likelihood of mosquito bites, and thus the risk of mosquito-borne disease, nothing beats an impenetrable shield. Anything that physically separates those piercing, sucking mouthparts from your skin provides the ultimate protection. This usually begins in the form of clothing with a tight weave that hangs loosely, away from the body.
Bug nets around strollers are the best protection for babies before they’re old enough to wear repellent (see above). Bug jackets are available for adults too – and depending on your situation you might consider it! When treating post-Harvey floodwaters for mosquito larvae, Township staff used these to protect against the swarms of floodwater mosquitoes.
Fighting off mosquitoes starts by protecting yourself but remember that you can also fight back by treating and removing common breeding places around the home. By protecting yourself with these two simple steps above, you can once again comfortably enjoy your time outside. Just remember that you are only invisible to the mosquitoes, the rest of the world can still see you!
Questions, comments or to report a mosquito concern, email firstname.lastname@example.org or call 281-210-3800
Applications will be accepted through April 17, 2020, or until position is filled. Interested candidates are encouraged to submit applications early for a seasonal, part-time position with the Mosquito Surveillance Team.
Conduct mosquito surveillance operations for disease carrying and nuisance mosquitoes in both the field and laboratory. $11-$12/hour, Monday through Friday with occasional Saturdays; 25 hrs/week, May through August or November. View the full job description here and apply here.
If you have been following the Eastern equine encephalitis outbreak
in the Northeast US, most of the news stories end with a statement such as “the
first killing frost ends the adult mosquito season in any given area.” This is
a completely valid assumption when you live in an area where temperatures drop
below freezing and stay there for weeks at a time.
However, to say that winter weather in our region can be variable is an understatement. While our recent cold front may have frozen some tender plants, it wasn’t enough to do much damage to our resident population of southern house mosquitoes, Culex quinquefasciatus.
That’s because, as the days get shorter and temperatures and humidity drop, this last generation of female mosquitoes plump up internal fat reserves and find a nice sheltered spot to wait out the winter. Storm drains are a favorite haunt, along with garden sheds and rodent burrows.
Along with a thicker outer skeleton that resists drying and a metabolism slowed down like cold molasses, these mosquitoes enter a form of dormancy called diapause. This state of suspended development will last until the days lengthen and temperatures rise again – a relatively short window in SE Texas.
And that sheltered spot? When it warms up, storm drains do double duty as a breeding place for those overwintering mosquitoes. Excess irrigation and grass clippings keep drains perpetually moist and full of organic material. This creates the perfect breeding ground– read more about it here. Consider turning off your automatic sprinkler for the winter to avoid runoff (it’s also healthier for your lawn).
So how do mosquitoes survive where it is cold and below freezing? They do so as eggs, just like the invasive Asian tiger mosquito, Aedes albopictus, that we have here. Based on seasonal cues, females will lay eggs with more fat to sustain the embryo, along with a thicker “coat” to keep eggs from drying out so they can survive the colder temperatures. These eggs are as big as a speck of dirt and almost impossible to differentiate with the naked eye. So, do yourself a favor and give those plant pots and other outdoor items a good scrub before storing them away for the winter. You’ll be rewarded with fewer mosquitoes when the weather warms.