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Table of contents
- K-State researchers say bug zappers may cause more harm than good
- How Bug Zappers Work
- The Best Bug Zapper: Don’t Leave Insects a Chance
- Finding and removing the old starter
Its name comes from the characteristic "zap" sound produced when an insect is electrocuted.
K-State researchers say bug zappers may cause more harm than good
Around homes, they are primarily used to kill biting female mosquitoes, which create itchy bumps and can transmit the West Nile Virus or encephalitis, malaria and yellow fever. While Popular Mechanics produced a sketch of a bug zapper as early as , it wasn't until that parasitology professor Dr. Herms introduced the electronic insect killer that became the model for all future bug zappers.
Bug zappers work by luring flying insects with fluorescent typically ultraviolet light into a deadly electrical current. Because the flower patterns that attract insects are better revealed in ultraviolet light, many flying insects that feed on flowers will be drawn to the bug zapper.
Before they reach the light, however, they will come into contact with the wire mesh, completing the electrical circuit and disintegrating. Bug zappers can kill many thousands of flying insects nightly. Some models incorporate a tray designed to collect scattered insect parts, although many models allow the debris to fall to the ground below.
How Bug Zappers Work
Despite their widespread use, numerous studies have called into question the effectiveness and safety of bug zappers. Two of the more pressing issues are the following:. In fact, the carbon dioxide that humans exhale is so attractive to mosquitoes that the only way to avoid the insects entirely might be to stop breathing. Instead, Dr.
The Best Bug Zapper: Don’t Leave Insects a Chance
Tallamy recommends common sense. Science A Bug in the Bug-Zapper. View on timesmachine. Public skepticism about the effectiveness of zappers has hurt sales, leading Montgomery Ward to stop stocking them. But one industry executive argued that such moves reflect a reluctance by some chains to advertise the product adequately. A more serious credibility problem for the U. And the current in their grids can be so weak that bugs stick instead of drying out and falling away.
Using electricity to kill flying insects is nothing new. Farmers have been using large, heavy-duty electrified grids for half a century to kill barn flies, said Arthur W.
Seeds, executive vice president of the Electronic Pest Control Assn. But only in the early s did firms such as Flowtron begin producing small, residential zappers mounted on lamp posts or hung from hooks. Even electrified window and door screens are sold now.
Finding and removing the old starter
The industry boomed into the early s, with 25 domestic manufacturers and sales of 2. Today there are four large makers of residential zappers left.
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Sales fell to about 2. Prices have fallen precipitously as the biggest producers installed expensive equipment to produce zappers with all plastic housings and mountings, thereby eliminating the high labor costs of building metal zappers. Warehouse stores and other mass retailers drove small hardware stores out of the business by selling zappers very cheaply, then demanded bulk purchase discounts that barely covered the cost of making zappers, he charged. Sadler said sales figures from the Electronic Pest Control Assn.
He estimated that at most 1. Chemical repellents last longer when sprayed on clothing than when applied to skin, he said.
Works every time, he said.