Chris from Saint Augustine, Fl writes
It is always a good practice to alternate products with different active ingredients. You can certainlyalternate Onslaught FastCap Spider and Scorpion Insecticide with Bifen I/T. They both can be used indoors and outdoors around the perimeter of your home. We would recommend 30 days between applications of different products.
Answer last updated on: 08/10/2018