Lawn Diseases
Brown Patch Lawn Disease Treatment
Identify brown patch fungus, stop it with the right fungicide, and change the conditions that caused it — a complete recovery plan.
Organic Lawn Fertilizer
Milorganite Slow-Release Nitrogen Fertilizer (6-4-0) Review
★★★★★ 4.7/5 editor rating
The cult classic: burn-proof slow-release nitrogen plus iron for deep green color without surge growth.
Affiliate links — see our disclosure. Commissions never influence verdicts.
Our Verdict
The most forgiving fertilizer you can buy — impossible to burn, safe in summer disease season when fast nitrogen is risky, and the iron delivers color without a growth flush you have to mow twice a week. Trade-off: you'll carry more bags, and results build gradually.
✅ Pros
- Cannot burn turf — apply in almost any weather
- Iron deepens color without pushing mowing-intensive growth
- Feeds soil microbes, not just the plant
- The safe choice during summer disease season
⚠️ Cons
- Low analysis means heavy bags and more of them
- Earthy smell for a few days after application
- Contains phosphorus — restricted for routine use in some states
- Slower visible results than synthetics
| Product type | Organic Lawn Fertilizer |
| Active ingredient | 6-4-0 biosolids with 2.5% non-staining iron |
| Price range | $30–$42 (32 lb) |
| Coverage | 2,500 sq ft per bag |
| Best for | Burn-proof feeding and deep color without surge growth |
Where This Product Matters
Matched against each state's actual disease, weed and pest pressure.
Florida
Florida hub →🌾 St. Augustine🌾 Bahiagrass🌾 Zoysia🌾 Bermuda🌾 Centipede
Application window: April–May and September–October (check local summer blackout ordinances)
⚖️ Florida's Urban Turf Rule limits phosphorus applications unless a soil test shows deficiency — and many counties add a June–September nitrogen blackout.
Texas
Texas hub →🌾 Bermuda🌾 St. Augustine🌾 Zoysia🌾 Tall Fescue
Application window: Late April after full green-up, June, and early September
North Carolina
North Carolina hub →🌾 Tall Fescue🌾 Bermuda🌾 Zoysia🌾 Centipede🌾 Kentucky Bluegrass
Application window: Fescue feeds in fall: September, October and late November — never in summer
Georgia
Georgia hub →🌾 Bermuda🌾 Zoysia🌾 Centipede🌾 St. Augustine🌾 Tall Fescue
Application window: Bermuda: monthly light feedings from full green-up (late April) through August
Ohio
Ohio hub →🌾 Kentucky Bluegrass🌾 Perennial Ryegrass🌾 Tall Fescue🌾 Fine Fescue
Application window: September and early November (winterizer) carry the lawn; optional light feeding late May
California
California hub →🌾 Tall Fescue🌾 Bermuda🌾 St. Augustine🌾 Zoysia
Application window: Fescue: October–November and March–April; Bermuda: May–August
Pennsylvania
Pennsylvania hub →🌾 Kentucky Bluegrass🌾 Tall Fescue🌾 Perennial Ryegrass🌾 Fine Fescue
Application window: September and late October; state law closes the window December 15 – March 1
⚖️ Pennsylvania's fertilizer law restricts phosphorus to soil-test need, new seedings or repairs.
Illinois
Illinois hub →🌾 Kentucky Bluegrass🌾 Tall Fescue🌾 Perennial Ryegrass🌾 Fine Fescue🌾 Zoysia
Application window: Labor Day and Halloween feedings do 80% of the work; optional light Memorial Day application
⚖️ Some Illinois municipalities restrict phosphorus lawn fertilizer — check local ordinances.
Tennessee
Tennessee hub →🌾 Tall Fescue🌾 Bermuda🌾 Zoysia🌾 Kentucky Bluegrass
Application window: Fescue: September through November; Bermuda and zoysia: May through August
Arizona
Arizona hub →🌾 Bermuda🌾 Perennial Ryegrass🌾 Zoysia🌾 St. Augustine
Application window: Bermuda: light monthly feedings May–September, plus iron for alkalinity yellowing
Guides That Use This Product
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