Baking Soda for St. Augustine Fungus: Recipe and Timing

Fungus Treatment Formula

Dissolve ¼ cup baking soda in 1 gallon water. Spray to thoroughly drench affected areas. Apply at first sign of fungus, on rose new growth in spring, and after cool rainy periods.

When Fungus Persists in Same Spot

Recurring fungus often indicates buried decaying matter:

• Rotted tree root
• Construction debris (lumber scraps)
• Buried stump

Excavate and remove the source if possible.

Preventive Cultural Practices

• Water deeply, infrequently (morning only).
• Avoid nitrogen-heavy summer fertilization.
• Mow at recommended height for St. Augustine (3–4 inches).