Which mosquito magnet is best for covering a large area?

Several types of mosquito magnets and traps can cover a large area. Industrial-strength varieties cover up to an acre or more.

Do mosquito magnets really work?

Mosquito magnets and traps are highly effective even in harsh environments. Most use a CO2 attractant that mimics a human to draw the mosquitoes to the trap or magnet and away from people. It is best to place them in a shady area between the source of mosquitoes (oftentimes near standing water) and the people you want to protect.

Are any of the mosquito magnets attractive enough to have in a garden or on a patio?

There are decorative types of mosquito magnets and traps. Some are designed to look like lanterns or lights. Others, like green-painted styles, can blend into a garden. A rounded black style can look like garden art.