2/28/2013 1:02 PM
I've used Barricade(prodiamine) for the last 10 plus seasons on bent/poa freeways mowed at .500". I use the 1 lb/ acre rate in the fall. No problems.
I prefer the fall for a few reasons, 1. my fairways don't care for hollow core aeration when they are too dry and I tend to pull turf and clumps of soil up, so I can skip the mediocre areas that have been repaired. 2. My course has the ability to flood, thus I like the ability to control weed seeds in the fall and not have to worry about them in the spring when it's to wet to get out and spray. 3. Spray in the fall and forget about it all winter, no timing issues.
If I have any break through, I use Drive at the half rate and smoke the crab and broadleaf right out. I know a few supers who are playing around with using Acclaim at 3.5oz/acre rate on bent monthly around here.
Good luck.