I'm going to take a chance with this VERY large bottle. I'll be using it a lot as the wasps get into my walls through small openings they've chewed in the mortar between the bricks by my front door. Also, my shed is tiny--about the size of one small person, and they literally try to build a housing complex in there every spring. They're the brown paper wasps, and I usually end up squishing them one by one with a hand trowel. If you were nearby, you would hear me apologizing to each one as I end their lives. I hate doing it as they are welcome in my garden. But I can't let them infest the shed, or hang their nests off my handrails. So using this will be such a welcome change! No more dead wasps!
So that's three normal eye droppers to one regular-sized spray bottle, fill with water, shake to mix and spray?