High humidity and daily temperatures over 80⁰ make your lawn vulnerable to what is known as Brown Patch, known for its spotty, ring-shaped brown spots it can leave on your grass. This lawn disease is caused by fungal growth and can leave your lawn looking less than stellar.
You'll notice the effects of Brown Patch in your lawn by the brown, tannish color circles and rings that range from 5 inches to 10 feet in diameter. Typically, Brown Patch is found in lawns comprised of Fescue, a cool season turfgrass.
Another frequently found lawn disease that can resemble Brown Patch is known as Large Patch. This fungal disease is also caused by the same agent, Rhizoctonia solani, and can give your lawn brownish, orange spots and rings ranging from 3 to 25 feet in diameter.
Large Patch is most common in warm-season grasses such as Bermuda grass or centipede grass. Unlike Brown Patch, which is common in the summertime, Large Patch is typically noticed in spring and fall months, and best treated in March, September, and October. Large Patch is perennial in nature and can recur in the same spot year to year if not treated correctly.
Lawns with improper drainage and too much shade can harbor high levels of humidity in the summertime, making those areas of your lawn susceptible to fungal growth. Excessive layers of thatch, which is a buildup of organic matter at the base of grass growth, can also prevent your lawn from lowering its humidity levels. Thatch levels are properly maintained with regular aeration treatments.
Scheduling your annual core aeration is always preferred to keep your lawn healthy all year-round, along with fungal treatments throughout the summer months.
Contact AgroPro today to learn more about controlling and preventing lawn disease.