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Loong from New Orleans, Louisiana writes

Can I use Solitare WSL to kill crabgrass in St. Augustine grass for post-emergent control?

Answer:

Solitare WSL and other products containing quinclorac are not safe to use on St. Augustine turfgrass. For larger lawns, you can use MSM Turf Herbicide for crabgrass control, just be careful to apply at the listed low rates. You can also use Blindside or Atrazine, though more than one application may be required.

Answer last updated on: 07/03/2019

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