Getting a garden ready for an outdoor event in an Alabama summer

There is a particular kind of anxiety that comes with hosting outdoors in an Alabama summer. You have the date, the people are coming, the garden looks the best it has looked all year, and there is nothing you can do about the one variable that will decide whether anybody actually stays outside.

Event mosquito treatment exists for exactly that. It is a single visit for a single date, and the most important thing about it is when it happens.

Why 24 to 48 hours before, and not the morning of

The instinct is to have it done as late as possible, on the theory that fresher is stronger. It is the wrong instinct, and it is the single most common thing we talk people out of.

A treatment needs time to settle into the harborage. The material has to work into the shaded, humid growth at the edges where mosquitoes actually rest, rather than sitting on the surface of everything. Applied a day or two ahead, it has done that by the time guests arrive. Applied three hours before, it is still largely on the surface, doing far less than it looks like it is doing.

The window has a second benefit that matters here. Once the treatment has settled it stays effective even if it rains between the visit and the event, which in this part of the country is not a remote scenario in July.

What gets treated

The whole boundary of the space guests will use, not the patch where the tables are going. That is the part people find surprising, because the mosquitoes biting someone standing at a table are not living under that table.

• Fence lines and the growth behind them
• Treeline and dense planting at the edges of the space
• Beds against the house and any shaded strip under eaves
• Long grass and margins around the useable area
• Standing water within reach of the event space

Planning the date backwards

If you are organising anything more elaborate than a cookout, work backwards from the event and book the treatment early, particularly in high season. A wedding reception with a marquee going up has a schedule of its own, and the treatment wants to be in before the space fills with equipment and people setting up.

Tell whoever quotes it what the event actually is. A children's birthday in a small garden and a hundred person reception across a large plot are different jobs, and the useful conversation is about how much ground guests will actually be on rather than about the size of the deed.

One visit, no commitment

Event spraying is deliberately a one off. There is no ongoing obligation attached to it, and it is fine to use it once and never think about mosquitoes again until the following summer.

What does happen fairly often is that people book it for a specific occasion, notice how different the garden is, and move onto a recurring program afterwards. That is a decision worth making after the event rather than before it. If the garden only gets this kind of use once a year, one visit a year is the honest answer.

What still helps on the day

A treatment does the heavy lifting, but a few ordinary decisions on the day stack on top of it, and they cost nothing.

• Put seating and food toward the open middle rather than tight against a hedge or treeline
• Run a fan across a seated area if you have power out there, because mosquitoes are weak fliers
• Empty anything that has filled with water since the treatment, including coolers and buckets brought out for the day
• Keep the bins away from where people will be standing
• If the party runs into dusk, that is when a second species becomes active, so plan the outdoor part around daylight where you can

None of these are a substitute for treating the boundary, and none of them will rescue an untreated garden on a bad evening. They are the difference between a good result and a very good one.

What to tell your guests

Very little, in practice. A treatment that went down a day or two earlier is not something guests will be aware of. If anyone asks, and occasionally someone will, the useful thing to be able to say is when it was applied and that it was done by a licensed company, which is one reason to use somebody who is certified by the state and insured rather than the cheapest option with a sprayer.

The measure of a good event treatment is that nobody at the party ever mentions mosquitoes, and nobody quite notices that they have not.