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Amazon.com : Scotts Halts Crabgrass & Grassy Weed Preventer, Pre-Emergent Weed Killer for Lawns, 5,000 sq. ft., 10.06 lbs. : Weed Killers : Patio, Lawn & Garden
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Amazon.com : The Andersons Barricade Professional-Grade Granular Pre-Emergent Weed Control - Covers up to 5,800 sq ft (18 lb) : Patio, Lawn & Garden
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Scotts Turf Builder Halts 13.35-lbs. 5000-sq ft Pre-emergent Crabgrass Control in the Weed Preventers department at Lowes.com
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