THE NO PEST is a mighty formula....the most I have heard of a man mixing it with Spray III is 8 droppers FULL to a 2 ounce bottle. He said it is so powerful you can't spray it in the home and he goes outside to apply it to his back.....way too strong for my taste for sure...
If you can handle cayenne powder mixed with water, your a professional.....I was too whimpy for it.