For about 12 years I have had what I call NO PEST. It is basically a blend of spice oils that works for the garden, the hot tub, Spray III, etc., etc.... The main ingredient is extremely hard to come by, not made in the USA, well; actually none of the ingredients are made in the usa as far as that goes....Only 1 of the ingredients is s rare, I am thinking maybe there is only 1 source on earth for it now and I don't even know the real source, because my source protects their sources, etc......but for now, I have enough to play with.
My estimate is that No Pest is about 8x hotter+ than plain pure Oregano Oil and I believe superior in everyway imaginable. I told Jody she could put it on the store for the same price as Oregano for as long as we have plenty. By Plenty, I mean I have about 5 gallons to spare.