<p>bullwinkle, hilarious…</p>
<p>Be careful with insecticides. You do know the potent ones are nerve agents? In other words, you would have a mini WMD in your hand with that spray can. </p>
<p>Seriously, the ones that are EPA registered for home use are not too bad, but can still mess up pets and do a real number on critters you don’t want to harm. The pros are right - you gotta find the nest. Problem is there are some kinds of wasps that nest in wood, believe it or not, although they’re not common.</p>
<p>Your best bet is either to get underneath if you can to find the nest. Sometimes, some careful listening will lead you to it. You might even think of going to a store to buy a sound probe. You could probe the deck surface listening for the nest.</p>