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Organic Weed Control for St. Augustine Grass in Dallas: Beyond Scott's Bonus S

Why Scott's Bonus S Failed

Chemical weed-and-feed products are ineffective long-term and destroy soil biology. The expert found Fertilome slightly better, but nothing matches a full organic program.

Complete Organic Regimen (Dallas-Proven)

Sugar: 4–5 lbs/1,000 sq ft spring/fall.
Deep watering: 6+ inches weekly; cycle soaker hoses.
Baking soda: 2 tbsp/gal for foliar/soil fungus.
Corn gluten meal: Pre-emergent + slow N at forsythia bloom.
Alfalfa meal: Broadcast or tea for nutrients and blooms.
Lava sand: Mineral supplement.
Compost/humus: Top-dress; earthworms incorporate.

Ecosystem Results

Beneficial insects (ladybugs, mantids), lizards, toads, and snakes naturally control pests. Weeds can't compete in rich, biologically active soil. The expert's Irving lawn has zero weeds—any that appear die quickly.

Winter Weeds

Purple-flowered winter weeds (likely henbit/deadnettle) are annuals. CGM in spring prevents next generation. Mow high now to prevent seeding.

Lawns: Year-Round St. Augustine Care in Southern California; Dead St. Augustine in Florida: Fertilizer Won't Resurrect; Comprehensive St. Augustine Renovation in Orlando; Recovering St. Augustine Grass After 2,4-D Damage: Cultural Practices and Organic Weed Control; Dog-Damaged Lawn: Consider Artificial Turf or River Rock; Eliminating Dallisgrass in San Diego Organically; Weed Invasion from Surrounding Fields: Organic Defense for Texas Lawn; Will St. Augustine Grass Thrive in Salem, Alabama?; Converting a Weedy Dirt Lot to Lawn: The Organic Soil-First Approach; St. Augustine Grass: The Lush, Shade-Tolerant Lawn for Warm Climates

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