2221 West 34th Street, Houston, TX 77018
BROWN PATCH, Rhizoctonia Solani, presents a serious threat to St. Augustine each fall. Brown Patch favors warm days, cool nights, and moist weather. These conditions occur mostly in the fall. Note: Brown Patch resides in the soil on a year round basis and can be observed in the spring and summer as well.
The key is prevention through good soil health, reducing stress, regulating your irrigation and applying your inputs timely.
Fight the disease early. Don’t wait till it appears. Brown Patch almost always occurs in the same spot.
Generally, synthetic fungicides are only marginally effective and always expensive. Your best bet will be to adopt a few or all of the suggestions below:
• Apply “Brown Patch MicroLife 5-1-3” or MicroGro + MicroLife 6-2-4 in either August, September or October
• Your choice of fall fertilizer is important. You want a good quality organic to improve the soil coupled with low rates of Nitrogen
• At some point in the Fall, around September 21st, the physiological nature of St. Augustine changes and it needs much less water. At that time cut irrigation by 50%.
• Improve drainage where needed
• Do not use chemical fungicides
• Re-apply MicroGro biological as needed