This product definitely works; however, to kill the eggs/larvae you have to add Martin’s I. G. Regulator to the Viper to stop the cycle. I also recommend to my customers that they rotate the insecticides they use so that the insects don’t become immune to them.
Using the products inside, it will last up to 4 months; however, outside, the chemicals effectiveness begins to break down in 30 days due to the sun’s rays.