Seeing a lot of crabgrass breaking through with the numerous afternoon thunderstorms popping up. Was hoping to make it to august before the pre started wearing off but a warm spring isn't helping. Currently using celcius at the med rate, and will have to see how it does on some of the crab(last year it did good on small cg, but the big stuff it didn't touch.) I've used q4 and quincept in the summer, but have not liked some of the burning. Has anyone notice a temp point where it does better? Label says 85, but that means anyone south of virginia would be out of luck! How's the control at the lower rates? Maybe I just need to get a backpack of drive. Summer apps kill me. got three different back packs going.... broadleafs, sedges, and I guess now crab. Any reviews on blindside or other new products? With the summer heat I really need something that is ok over 90 degrees without the burn.