To a Texan, their yard is their pride and joy that they put lots of work and money into each year. But all that hard work can be upended by common lawn diseases. Lawn diseases can seemingly spring up overnight and ruin the look of your lawn. The damage done to your lawn varies from disease to disease. Keep reading to better understand what threat lawn diseases pose to your lawn.
Take-all patch is a fungal disease caused by the fungus Gaeumannomyces graminis. It is a major threat to Bermudagrass and St. Augustine grass. The fungus causes symptoms similar to necrotic ring spot. Take-all patch is most prevalent in areas that have been recently cleared of brush and trees. Take-all patch usually appears in late spring or early summer. Symptoms begin as tight, circular, light brown patches. Since the pathogen lives in the soil, it can be spread through planting and moving dirt. The patches can return over successive years and expand to reach diameters of 3 feet or more. The time it takes grass to recover from take-all patch is slow. Overseeding with different types of grass can reduce disease severity. The severity of take-all patch can also be reduced by maintaining a soil pH around 5.5 to 6.0. Keep your yard well-drained and hold off on fertilizers rich in nitrogen.
Necrotic ring spot is an ugly disease that affects the crowns and roots of Kentucky bluegrass, fescues, and ryegrass. It usually appears as light green or brown rings on the grass that can be several inches and grow to several feet in diameter. As the infected grass on the outer edge of the ring dies, it turns brown while the center remains green. Necrotic ring spot is prevalent in lawns stressed from drought and heat. Follow proper irrigation methods to ensure your grass is getting enough water and drying before nightfall. Getting your yard aerated could help prevent necrotic ring spot from returning.
Brown patch is another common disease we see a lot of in Texas lawns. Brown patch, as its name suggests, appears as brown circular patches that can range from just a few inches to several feet in diameter. Your grass becomes vulnerable to brown patch in hot, humid conditions, especially at night. Other contributing factors include compacted soil, poor drainage, over-watering, and watering too late in the afternoon. Brown patch can weaken or even kill your grass, making it easy for weeds to take over. Brown patch can be prevented by overseeding with stronger variants of tall fescues.
St. Augustine decline is a disease affecting St. Augustine and centipedegrass. It is caused by the panicum mosaic virus. Symptoms first appear as chlorotic mottling or stippling of leaf blades. Infected leaves turn yellow, become less vigorous, begin to thin out, and eventually die. The virus can be transmitted through contaminated tools, sod, or even your lawnmower. Unfortunately, there is no cure for St. Augustine decline. Fertilizing and watering properly to ensure a thick and healthy lawn can help minimize the threat of St. Augustine decline.
Lawn Lab is a locally owned business with 20 years of experience fighting fire ants in our community. We know what works and what doesn’t. We offer effective fire ant control solutions that exterminate these backyard bugs, no matter where they are hiding.
At Lawn Lab, we will treat your yard with our specialized bait to kill fire ants, and we’ll return throughout the year for re-applications to make sure they are under control. Because fire ants are difficult to control, recruiting the help of a professional is a good idea.
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