One of the best ways to keep a yard clear of biting mosquitoes is to use a mosquito trap. When set up properly, just one or two of these ingenious devices can kill thousands of mosquitoes and all but wipe out a local population.
The style of trap varies by brand, but generally they range from indoor units the size of air purifiers to large units that resemble barbecue grills. Some run on electricity, while others are powered
by propane tanks.
They work like this:
The homeowner places the mosquito trap in the yard between the source of the mosquitoes and where people gather. For example, if mosquitoes tend to come from a drainage ditch at the back of the yard, the trap would go near the ditch to catch the insects before they reach the patio.
Typically, it’s better to place the trap upwind of the mosquitoes and in a shaded spot.
Because mosquitoes find their prey by detecting CO2, octenol and other chemical odors, as well as light and heat, most mosquito traps use some combination of artificial smells and lighting displays to lure mosquitoes.
Brands like the Mosquito Magnet burn propane both to power the trap and to release CO2, while simpler machines like the Mega-Catch Mosquito Traps may rely on a octenol and a lighting array of oscillating frequencies proven to attract mosquitoes.
Once the mosquitoes get close to the traps, fans capture and force them into catch basins or bags or onto sticky boards to die.
Different mosquito species respond in different ways to the attractants, so homeowners need to experiment to find the right right combination of stimuli. For example, the Asian tiger mosquito, which can transmit dengue and yellow fever, is a daytime biter and responds better to visual attractants than chemical odors.
Most mosquito traps can run continuously, which is important in the beginning as it typically takes about two months to kill enough female mosquitoes to make a population collapse.
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