roskilan – posted 14 July 2004 15:39
I live in SC and have a ST Augustine lawn that is being invaded by purple nutsedge. Unfortunately, Ive been plucking, but am learning from sources that this actually makes the matter worse! (spread faster) Is this true?My local store told me to use Image, but that I can’t apply it until mid-Sept when temps drop. Is there anything I can do in the interim to atleast slow the spreading?
Help!
Thanks
Andrew
Alex_in_FL – posted 15 July 2004 16:41
Options from best to worse:- Spot spray with Manage, it is expensive but works.- Spot spray with Image late in the day- Spot spray with CAMA- get a 2inch PVC pipe about 6″ high and spot spray the nutsedge with roundup. Will take several tries however- minimize water since nutsedge likes water
Good luck.
Alex
buck – posted 17 August 2004 07:21
See my post in the Atrizine/Image topic. I can nail nutsedge in 90 degrees in about two days with no damage whatsoever to my 419.
Alex_in_FL – posted 17 August 2004 16:09
Plucking sedge will not make it spread according to the Univ. of California. Here is what they say:
Tubers are key to perennial nutsedges survival. If you can limit production of the tubers, then the nutsedge will eventually be controlled. To limit tuber production, remove small nutsedge plants before they have five to six leaves; in summer this is about every 2 to 3 weeks. Up to this stage, new tubers have not yet formed. By removing as much of the plant as possible, the tuber will be forced to produce a new plant, drawing its energy reserves from tuber production to the production of new leaves. Continually removing shoots eventually depletes the energy reserves in the tuber because 60% of the reserves is used to develop the first plant and 20% for the second. However, mature tubers can resprout as many as 10 to 12 times. Even though these newer sprouts start out weaker than the previous ones, they will gradually resupply the tubers energy reserves unless they are removed.