Every evening, a mass murderer stalks the darkness of America’s suburbs. An eerie blue glow lures hapless victims from their properties. The doomed souls, chemical-free bug control mesmerized by the light, throng to their deaths in scorching blasts of electricity. I’m talking about the bug zapper. Many individuals use the system to rid themselves of mosquitoes and other pests. "Kill flies, mosquitoes, gnats, and wasps," touts Black and Decker. Flowtron will help eradicate flying pests over up to "2 acres" for just $315. Another advertises itself as an "eco-friendly" strategy to "instantly kill" mosquitoes. The issue? None of these claims are true, scientists say. In actual fact, bug zappers make it more possible you’ll be bitten by mosquitoes while sitting in your backyard. "When it involves mosquitoes, bug zappers don’t work," says James Fordyce, an entomologist on the University of Tennessee at Knoxville. Bug zappers are exceptional killers of bugs - just not those that chew you. Among the hundreds of insects these gadgets electrocute each evening, nearly all are harmless.
One study estimated even a fraction of the bug zappers bought within the United States kill more than 70 billion insects annually - with no discernible influence on mosquitoes or different biting insects. This pointless slaughter of local insect populations could also be hastening the decline of species, the insect apocalypse. I talked to specialists about why chemical-free bug control zappers are a extremely unhealthy concept to do away with mosquitoes - and what works as an alternative. Bug zappers purport to work by attracting mosquitoes, typically using a lightbulb that emits ultraviolet light, or generally carbon dioxide or chemical bait. Yet research show nearly no mosquitoes or other biting insects ever enter a zapper. In 1997, the University of Florida’s medical entomological laboratory tallied the demise toll from one bug zapper over a single evening: 10,000 insects. Just eight had been mosquitoes. Similar studies reflected those findings. Around the identical time, researchers at the University of Delaware used a bug zapper to lure 13,789 insects over a summer.
Only 31 - 0.22 percent - have been biting insects akin to mosquitoes and gnats. What did it kill? Beneficial bugs, principally. Roughly half the victims - 6,670 insects - have been harmless aquatic species from nearby rivers and streams, fish food in the aquatic meals chain. Most of the others were parasitic wasps and beetles that naturally prey on mosquitoes. Mosquitoes are usually not fooled by zappers as a result of, along with different bloodsucking insects, they've evolved to dwelling in on animals’ exhaled carbon dioxide, not ultraviolet gentle, scientists say. Even when mosquitoes are drawn in by a bug zapper, they will immediately redirect their attention to their favorite foods: warmblooded mammals, especially people. And Colorado State University’s extension service has reached the identical conclusion: "No managed scientific examine has proven that these units scale back mosquito biting charges outdoors," it states on its web site. None responded with material supporting their claims after multiple inquiries.
Black and Decker referred all questions to a contract manufacturer, which also didn't respond. These claims not solely mislead patrons by ignoring scientific evidence, however they might create a false sense of safety for individuals who use these devices to protect in opposition to mosquito-borne diseases within the United States, Fordyce mentioned. "If one wish to avoid being bit, a repellent is the solution," he says. "Even if zappers labored … The FTC, while not commenting on the companies’ advertising and marketing statements, famous that it had investigated deceptive statements and safety issues in the past issuing warning letters and filing instances in opposition to manufacturers of other varieties of pest control, equivalent to ultrasonic units. FTC officials beneficial the public submit any complaints by means of their web site. What does repel mosquitoes? Bug zappers are just one among many suspect products promising to do away with biting insects: ultrasonic devices, propane-fired CO2 traps, and pesticide misters are among those that do not work, or do more hurt than good, according to Texas A&M.