Green Calisto and Tenacity are about the same Agency price per Gallon $ 725. That is actual is down a little from Last year. The 8 oz Tenacity story a current thread in Pesticide forum, I can not confirm through my suppliers who are also a repackaging plant with establishment numbers. Celsius was a real hyped bust IMHO. But I am hearing great thing about Tenacity. Two factors have kept me from purchasing it. First the label which only lists Sod Farms Golf Course Etc. And most importantly the $ 725.00 plus Tax.