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Discussion in 'Florida Lawn Care Forum' started by jvanvliet, Feb 7, 2012.
i used barricade last year and didnt notice any root problems... going to use it again this year...
If you have to use Dimension twice. You could then followup with another product in mid summer...and still be legal. Use prodiamine or pendimethalin.
If you have weeds now there is a good chance you are looking at winter annuals that germinated in late fall. Henbit, poa, chickweed.
The L&O is subbed out through my maintenance company.
Weeds that are showing have germinated, still plenty of seed in the ground that has not. Soil temperatures range between 60 & 70F (depending on location) which in range for germination. We have recommended emerged weeds receive spot treatment & a blanket pre-emergent application.
Florida Pusley, Common Lespedeza, Kakiweed, Purslane, etc. and of course Dollar Weed from people refusing to cut back irrigation (not a big problem on most of our properties).
We've had a warm winter, mid 70F - low 80F and a decent amount of rainfal.
Cold snaps have been somewhat mild and of short duration usually not lasting more than about two days.
Broad-leaf weeds are or should be easy to keep out of all the warm season turf. IMHO Pre emerge isn't needed for those weeds and does more damage than good. HOWEVER Grassy Weeds are a problem and we have very few legal Herbicides that can control them. THEREFORE Pre Emerge becomes valuable for Control of Crabgrass and suppression of Bermuda and Torpedo grass.
Today's post-emerge Crabgrass herbicides are rather disappointing. I actually have better luck killing Crabgrass with my Torpedo Grass herbicide which works great.