Dollar Weed elimination - Knowledgebase Question

Hutto, Te
Question by emfuessel
May 25, 2010
I am trying to get St.Augustine grass to take hold in our back yard. However, in several places dollar weed has taken over. What is the best and most effective product to eliminate


Image
Answer from NGA
May 25, 2010

0

Dollarweed thrives in weak, thin turf with excessive moisture. The first defense against dollarweed is to reduce moisture levels and modify cultural methods (i.e., proper mowing height and irrigation). After taking steps to modify the lawn care techniques, a chemical control may still be necessary to further reduce the dollarweed population. Atrazine (Hi-Yield Atrazine Weed Killer, Image for St. Augustine & Centipedegrass, Southern Ag Atrazine St. Augustine Weed Killer, and Spectracide Weed Stop for Lawns Conc. for St. Augustine & Centipede Lawns) can be applied to St. Augustinegrass and Centipedegrass up to two times a year. For maximum effect atrazine should be applied once in the fall and again in late spring (after spring green-up). Atrazine has a pre- and post-emergent effect on weeds, which means it helps to control both emerged weeds and weed seed. Good luck with your project!

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