My Disappointing Experience with K-Othrine SC50 and Bayer Habitro

I have high expectations for the K-Othrine SC50 fly spray that I buy every year, but it never delivers. There wasn't a single dead fly in sight! To make matters worse, I tried the Bayer Habitro ant killer, but the ants aren't drawn to regular sugar. The advertisements for these products make them appear to be extremely efficient, but they are not at all what they claim to be. I'm giving this feedback based on my own personal experience in the hopes that if the businesses in question are legitimate, they'll take notice and look into it. It can be very frustrating to spend money on insecticides that are supposed to be reliable but have no effect. Something must be done differently!