How Disney World keeps out mosquitos

Disney World is largely mosquito-free, thanks to civil engineer Joe Potter

As a former governor of the mosquito-prone Panama Canal zone, Potter understood the danger of standing water. At Disney, Potter built ditches to reduce moisture, designed buildings to channel water away, and more. His efforts help visitors avoid bites, adding to the perceived magic of the magical kingdom.

Disney World's Magic Kingdom includes utilidors—an underground system of tunnels and passageways—to hide the park's maintenance operations.

Explore inside a mosquito factory where millions of mosquitoes are bred weekly

In Medellin, Colombia, scientists are infecting Aedes aegypti mosquitoes with Wolbachia, a bacterium that wouldn't otherwise infect the species, but does block its ability to transmit dengue, Zika, yellow fever, and chikungunya. In the wild, infected mosquitoes would breed with wild mosquitoes, pass down Wolbachia, and thus reduce disease transmission.

Disney World was originally known as the 'Florida Project,' an intentionally vague name intended to keep the theme park's plans secret.

Mosquitoes are the world's deadliest animal, but gene drives could kill them.

Iceland, the last mosquito-free country, detected them in 2025.

How to have a bug-free backyard dinner

An entomologist’s advice for bug-free backyard barbecues, including tips on the use of chemicals and how fans are pretty effective at keeping bugs away.

Mosquitoes stop flying at wind speeds equivalent to the swishing of a horse's tail.

Walt Disney World essentially ran its own local government for more than 50 years

Disney's Reedy Creek Improvement District granted the company county-level authority to construct roads, issue bonds, and self-regulate for decades. Florida Governor Ron DeSantis dissolved the arrangement in 2023 after a public dispute with the company.

Mosquito-borne illnesses have killed two captive orcas at SeaWorld since they became water park attractions.

What if we killed every mosquito on Earth?

Mosquitoes aren't just annoying, they're deadly. they're also responsible for an estimated 725,000 deaths worldwide, every year. Would it be so bad if we found a way to wipe them out completely? Real scientists have gamed out this hypothetical scenario, concluding it actually wouldn't be that bad. This five-minute video breaks down one way this could happen.

Wolbachia: the bacteria that could eliminate dengue fever

Dengue fever, transmitted by mosquitoes, kills more people annually than all types of natural disasters combined. However, mosquitoes that host Wolbachia bacterium have their ability to transmit the virus naturally suppressed, offering a route to eliminating nearly 25,000 deaths annually.

Scientists still don't know why DEET is such an effective bug repellent

This chemical, used to keep ticks, fleas, mosquitoes, and other nuisance bugs away, is used by an estimated one-third of the US population and has been available to consumers since 1957. Researchers theorize that multiple mechanisms may be at work to deter bugs, including perhaps masking or confusing bugs' olfactory receptors.

Some mosquitoes are key pollinators—and eat disease-carrying mosquitoes.

Wolbachia is a naturally occurring bacterium being employed to fight dengue

Scientists are fighting dengue spread in a roundabout way: injecting bacteria into Aedes aegypti mosquito eggs, which blocks the dengue virus from replicating in the tissue of mosquitoes. Researchers hope the bacterium will be passed to future generations, inoculating them against dengue. Wolbachia is also being investigated to combat other mosquito-borne diseases.

Read the 2012 study about captive orcas and the threat of mosquito-borne illness

Written by orca trainers who went on to become scientists, it states mosquitoes bite orcas at night when the animals hang out close to the surface. What's more, antibiotics used to keep captive orcas healthy also may depress their immune response, boosting the risks of them being unable to fight off diseases like West Nile Virus and encephalitis, which have killed orcas at US water parks.

Protecting yourself from West Nile involves avoiding getting bites and clearing standing water.

Researchers are breeding genetically modified mosquitoes to be malaria-resistant.

Disney Research developed a haptic interface where you can feel a fireworks display

Disney’s “Feeling Fireworks” uses water jets and a latex screen to replicate fireworks for blind individuals. Such technology may also provide inclusive experiences for the deaf community, though as of 2024, there are no plans to implement them in Disney parks.

Malaria mosquitoes in a lab were wiped out using CRISPR

Scientists at Imperial College London disabled a gene in female Anopheles gambiae mosquitoes to make them infertile and propagated the infertility mutation at unnaturally high rates using a gene drive. The entire population collapsed within a dozen generations, showing promise for subsequent with mosquitoes in mimicked tropical environments.

Anopheles mosquitoes are developing resistance to insecticides.

Mosquitoes top the ranking of the world's deadliest animals.

Wolbachia is also being used to slash mosquito numbers

The naturally occurring bacterium does not naturally infect Aedes aegypti mosquitoes, but communities in locations including California and Texas have released male mosquitoes infected with Wolbachia and reported a significant drop in subsequent mosquitoes: When infected males mate with uninfected wild females, the eggs don't hatch.

See Walt Disney's corporate strategy document from 1957, complete with a plethora of Mickey Mouse illustrations.

From 1970 to 2017, invasive species have caused $1.28T in damage globally

The costliest species were the Asian tiger and yellow fever mosquitoes ($149B), which arrived in the US from Asia and sub-Saharan Africa, respectively. The bulk of their damage came from their transmission of diseases such as Zika, chikungunya, and dengue. (Some readers may experience a paywall.)

Mosquito saliva acts as an anticlotting agent

The bug's piercing mouthpart, the proboscis, is actually several tubes—one for sucking, one for spitting. But the chemicals in its spit actually help its blood meal to flow, combating its victim's ability to clot at the puncture site.

Mosquitoes drink a maximum of 0.01 milliliters of blood in a single meal.

West Nile Virus is maintained in nature, even without human infections

Mosquitoes pick up the virus when they feed on birds, and then pass it to other birds with their bite, delivering it via virus-laden saliva. Hundreds of different North American bird species can harbor the virus—even if they don't all get sick from it.

How we helped make Aedes aegypti mosquitoes such a problem

Mosquito genome sequencing data suggests that Aedes aegypti mosquitoes first started specializing on human blood around 5,000 years ago—when climates shifted and humans started domesticating plants in Africa and stored large amounts of water that may have attracted the bugs.

Disney's IP problem, according to industry experts

Disney seems to be an unstoppable force in the entertainment industry, but after an unprecedented high point in 2019, the company began losing money. In this podcast, two industry veterans discuss what they see as Disney's existential problems: an overreliance on preexisting material and an inability to innovate as it once did.

Florida reports 71 imported malaria cases annually—4% of all the US cases.

Everything Disney, from a regularly updated news source

WDWNT is a daily updated fan publication tracking news across Walt Disney World in Florida and Disneyland in California, with its own podcast and a self-described mission to be the worldwide leader in Disney park news.

Disney funded his first theme park by agreeing to host a weekly show on ABC

Walt Disney was determined to open a theme park, but had numerous issues with funding. A break came when ABC offered to cover a signifcant portion of the construction, though it came with a catch: Walt would host a weekly Disneyland TV show (and provide them part-ownership of the park).

Dr. William Gorgas eradicated yellow fever in Panama, crucial to canal construction

The disease was one of the factors hampering the French effort to build the canal. Gorgas' experience elsewhere in the Caribbean had taught him that good drainage and quaranting patients were essential, and he would eventually apply mosquito prevention tactics on a mass scale.

Antimalarials must be taken before traveling to a malaria-endemic area

Malaria prevention involves avoiding getting bitten by mosquitoes (with bug spray and clothing choices) and taking malaria preventative drugs before, during, and after spending time in an area with malaria risk. The drug must be in the blood before the traveler is exposed to malaria parasites.

Disney purchased a street near its studios and keeps it pristine year-round so it's always ready for films that need suburban settings.

Understanding the Disney adult phenomenon

Disney isn’t just for kids, at least according to Disney adults, who dress up as their favorite characters and make pilgrimages to the company’s parks. They’re often considered immature, unrefined, or worse, but the members of this subculture don’t see anything wrong with their passionate devotion to Disney. This article explores the phenomenon through interviews with actual Disney adults, offering a more nuanced take on the reasons behind the much-maligned trend.

At Disney World, glass bottles and jars are pulverized into the smooth gravel and sand used in greenhouses that grow the flowers for the parks and resorts.

10 locally acquired malaria cases were reported in the US in 2023—a surprise

The cases, reported in Florida, Texas, Maryland, and Arkansas, broke a 20-year streak since there had been no reported locally acquired mosquito-transmitted malaria in the country since 2003, when there was a case in Florida.

Disney World tickets cost 56% more now than in 2014

The prototypical middle-class American family vacation has been a staple for decades. But in the last 10 years, the cost—over $5K for a 5-night stay for a family of four—has placed the trip out of reach for many.

Hear what it's like to have malaria from a patient who suffered from the mosquito-borne disease.

Genetic engineering mice is one idea to reduce Lyme disease transmission

Wild white-footed mice are the main carriers of Lyme. A research team is hoping to genetically engineer mice, using CRISPR, to make the animals immune to Lyme. They're proposing a field trial where they would insert a gene with an antibody to Lyme infection to break the disease transmission cycle on a private island and then try it in Nantucket if that goes well. Simply killing the mice isn't an option because it would upend food webs. Unlike traditional vaccines, this "heritable immunization" would pass from one generation of mice to the next.

Twin studies helped scientists understand why mosquitoes like some of us more than others

A combination of carbon dioxide output, skin chemistry, genetic factors, hormones, and clothing choice can make us particularly vulnerable to mosquito bites. Watch how mosquitoes responded to one man in the video versus his wife, a research approach typically conducted with identical and fraternal twins to test mosquito attractiveness.

Invasive species can harm infrastructure and threaten human health

The wildfires in Hawaii in 2022 were made worse by flammable invasive grasses introduced from Africa as livestock pasture, and Zebra mussels native to the Caspian and Black Seas have spread across Europe and the US, where they can clog power plant pipes. Invasive mosquitoes can carry diseases, such as dengue and malaria.

Disney was saved by 'Cinderella,' which brought the company out of debt

Producing war propaganda and training films helped the company towards solvency, but the military content wasn't a cure-all. Disney wasn't in the clear until 1950's "Cinderella," a much-needed hit. The movie's success was largely due to the return of the company's best writers and the work of Mary Blair, a watercolor artist who brought a more whimsical style to the film.

Mosquitoes even have olfactory receptors on their sperm.

Mosquito necroprinting uses an insect's mouthpart as the printer nozzle

Mosquitoes are abundant, and their nozzles are 32-100 times cheaper to harvest than to create from scratch out of metal or glass. By coating the organic nozzle to increase its strength, researchers are employing necroprinting to create tiny structures at better resolutions than commercial alternatives.

The fascinating world of Disney's themed trash cans

One man's trash can is a literal treasure trove for Steve Tanner, the impassioned curator of this gallery of Disney's hundreds of distinct trash cans at its many parks and resorts. For 15 years, Tanner has researched and photographed the varying styles and themes of the trash cans and posted images and descriptions of them on his site, organized by location. Dive into the world of trash here.

'The Wizarding World of Harry Potter' brought the books to life in theme parks

Opened in 2010 at Universal Orlando, the immersive attraction recreates Hogwarts, Hogsmeade and Diagon Alley. Additional Wizarding World lands now operate at Universal parks in Japan, Hollywood, and Beijing.

West Nile virus was detected in UK mosquitoes for the first time in 2023

Fragments of the virus were detected in mosquitoes that were being collected in Britain for the first time in 2023, but the UK government considers the overall risk to people to be low. As of spring 2026, there have never been detected locally-acquired cases of the disease.