Friday September 28, 2012
I was wondering if there is anything new or different advice for problems with the dreaded Crabgrass. I haven't tried any Pre-M because of the timing factor for one (not down at the right time and you have wasted your money) and I have seen stunted roots on others that have had Pre-M used. The Crabgrass is in St. Augustine in central Florida.
There probably is not anything strikingly new for crabgrass, and as one university fact sheet on this weed states it, "you cannot eradicate crabgrass and to expect a crabgrass-free lawn is unrealistic". These weeds produce copious numbers of seeds that can lay dormant in the soil for years, finally germinating when the conditions are appropriate. Typically this is when the soil temperature in the top 1/4 inch reaches about 60 degrees and stays there for several days. The seeds also could blow in from neighboring infested sites, so it will be a continual battle. For a homeowner it also pays to spend some time on a nice afternoon hand pulling the weeds, as they generally will not grow back from roots. Also coach the homeowner on proper watering and mowing, which, if possible, would be a deep watering every few days rather than a light daily watering, which encourages crabgrass and weakens the turf.
Mr. Pest Control
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Please note, Mr. Pest Control is answering questions supplied by PMP customers across North America. His answers are generated from industry and manufacturer-provided information. The answer may not be specific to the laws and regulations for your State, Province, Territory or Country. In addition, products mentioned may not be registered and or available in all areas. Always check with your local Univar office for specific information to your area. Always read and follow label directions.