Thank you so much. I have had a "German Roach" problem for years. (Really years over 15.) I have used several pest control companies. I don't switch companies often. I tried and tried with other companies. You all the are the first ones to understand and hopefully conquer it. I know it may take more than one or several treatments as so kindly explained by the tech. Thank you so much. (I don't want to go on Google and let the world know I had roaches. :-). Maybe I can pad my review.)