7/14/2011 8:07 AM
When we sprigged our 10 acre practice facility with 419 a few years ago around mid May, we alternated spraying after 30 days of sprigging every 7 days with Certainty first, Revolver next, Monument, and then MSMA. We sprayed about two apps of each with liquid iron in the tank and came out of the grow in very clean. All those chemicals were very gentle on the 419 and covered about every weed we encountered like the ones you mentioned you have. We made the mistake of spraying an acres worth of Drive one app after 60 days for crab which fried the crabgrass, but sent our 419 back alot, will not do that again in the heat of the summer.
John Wise
Oakbourne CC
Lafayette, La