By Flodnag
United States 
may have expose roots of magnolia tree to weed and feed and chemical spray to kill nut grass. leaves of tree curling. what can I do to help tree?
On plant
grand flora magnolia tree 4 -5 years old
20 May, 2013
Answers
Hi Flodnag, welcome to G O Y , once the herbicide is on the plant, about the only thing you can do is as Kildermorie has suggested, try to dilute it as much as possible, and hope for the best, Derek.
20 May, 2013
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Difficult one - how about leaving the sprinkler on to dilute and flush away the herbicide?
20 May, 2013