Stand at the property line between your yard and the one next door, and the difference can be hard to reconcile.

Two people sit on the same patio for the same hour. One goes inside itching, counting six fresh bites.

The buckets are gone. You walked the yard on a Saturday, tipped out the wheelbarrow, emptied the plant saucers, drilled a hole in the bottom of the kids' old sandbox lid, and felt good about it. Then the sun drops, you step outside to move the sprinkler, and inside a minute, they find your ankles again. Same whine, same welts, same yard you just cleared.

You had the enclosure built so you could eat dinner outside without waving a hand in front of your face every few minutes.

Your technician packed up around noon. By three, the sky over your yard has gone that flat gray color, wind kicking up ahead of the first drops, and you're standing at the window watching it come down harder by the minute.

Stand at the shallow end of your pool for a minute and look at the water itself.

A single mosquito resting on the wall behind the laundry room door does not look like much of a threat.

A flowerpot saucer on your patio has sat bone dry for six weeks. No standing water, nothing you could have missed with a hose, nothing an inspection would have flagged.

Two mosquito control service cadences show up on almost every proposal you will read for a South Florida yard: a treatment every month, or a treatment every eight weeks.

You stood in the yard at dusk on the second evening after the treatment, and nothing landed on you.

Say a landscaper or pest company has just proposed an installed misting system, complete with a tank, tubing, and nozzles staged along your fence line and planting beds.

If a lawn service already treats your yard on a regular schedule, it's reasonable to assume the same pass covers mosquitoes.

Professional mosquito control treatments help South Florida homeowners reduce mosquito activity around tropical landscaping and outdoor living spaces year-round.

A lawn that never browns, beds that look freshly mulched every week, hedges trimmed on a set rotation: that is the yard most homeowners work hardest to maintain, and it can still be the yard holding the steadiest mosquito population on the block.

If you are being bitten on your own patio, the question that narrows things down fastest is how far the mosquito biting you was capable of flying to get there.

The mosquitoes landing on your patio at dusk did not necessarily hatch anywhere on your lot.

Florida has more than eighty recorded mosquito species, more than almost any other state in the country.

Your mosquito visit is scheduled sometime between one and four on a Tuesday, and you have a two o'clock call you can't move.

Head far enough south from a base in West Boca Raton, and you leave Palm Beach County without any signage announcing it.

A canal-front yard and an inland yard of the same square footage are not the same job, even when the property lines look identical on a survey.