The manufacturer recommends 2 ounces per gallon (1:64) applied every 2-3 weeks, but my recommendation (and practice) is to do that for 2-3 applications at first, to get the population “pumped up”, then I drop to 1/2 that, applied once a month.
Ray your Quantum total is not in Europe or at least I can't find it. Do you have some information about it because I would like to try it