There are a couple of non toxic pest control options for wasps. In our Wasp Control article, we list a couple of concentrates you can spray that will keep wasps away from treated surfaces. These are all safe when used properly and the safety video's listed on each product page details all you need to know to both handle and store the products.

If you want something organic to spray, go with either the ECO IC CONCENTRATE or the MULTIPURPOSE INSECT KILLER.  These can be applied to the side of the home and should kill any that cross over it. I would expect that it will require several sprayings to knock them all off since these concentrates won't last as long as the traditional pesticides listed in our article but they should do the job. Once the problem is under control, you can go with the ORGANIC WASP REPELLENT to keep new ones from making nests. It can be added to paint or stain and you can even spray it throughout the year as needed.

As for a quick kill; the ECO WASP FREEZE is both quick acting and effective. Keep a few cans handy for spot treating but in the long run, don't rely on this to solve the problem.

Lastly, don't rule out dusting. This is a great way to control these guys and the DE DUST is a good replacement for the Drione. It's quick acting and can last a good long time.

Here are direct links to the information and products listed above:

Wasp Control:  http://www.wasps.net/wasp-and-hornet-control

ECO IC:  http://www.non-toxic-pest-control.com/concentrates/eco-exempt-ic-concentrate

Multipurpose Insect Killer:  http://www.non-toxic-pest-control.com/concentrates/multi-purpose-insect-killer-24-oz

Insect Repellent:  http://www.non-toxic-pest-control.com/repellents/nbs-repellent-insect-spray

ECO Wasp Freezre:  http://www.non-toxic-pest-control.com/aerosols/eco-exempt-wasp-and-hornet-killer-14-oz

DE Dust:  http://www.non-toxic-pest-control.com/dust/mothers-earth-diatomaceous-dust