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Black Mold in St. Augustine Lawn

With all the extra spring rainfall we've experienced this year, you may be seeing fungal diseases crop up in your lawn. If you notice black mold in your St. Augustine lawn, there could be several issues going on. 

Black fungus on the grass can be caused by several different types of fungi: Sooty mold grows on honeydew from aphids, Slime mold, brown patch disease and gray leaf spot. Slime mold has a black, powdery appearance that moves up the stem from the base. Brown patch causes yellow to reddish-brown spots in the lawn, and a black rotten appearance where the stem meets the ground. Gray leaf spot turns the blades yellow with an edge of black. 

Over-watering, especially in the evening or night, is often the cause of fungal diseases in the lawn, especially if the weather has also been rainy and warm. Using the wrong fertilizer can also contribute to the problem: Fertilizers too high or too low in Nitrogen can aid fungal growth. The best approach to fungal diseases in the lawn is prevention. Proper soil care, watering and fertilization can help prevent disease. Be sure to water your lawns in the morning instead of over-night. 

Sooty mold can sometimes be present in lawns if the surrounding trees, especially Pecans, have an outbreak of aphids. The honeydew produced by the aphids drops onto the grass allowing Sooty Mold to grow. 

If you notice mold or what appears to be fungal disease in your lawn, please give us a call and we'll schedule a consultation. We can identify the disease and also scout for aphid outbreaks or other pest issues. Our organic Soil Building Program ensures both your soil and your lawn are properly fed for optimal health and beauty. 972.272.921 or CONTACT US online. 

black mold, sooty mold, brown patch, lawn, St. Augustine, Soils Alive, Dallas, disease

1821 Wall Street
Garland, TX 75041
Ph: 972.272.9211

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