No trickery here, this disease gets it name from the silver dollar sized spots found on green lawns. On home lawns, these spots will be from 3-6 inches in diameter and sport a tan color. The size of these spots have a correlation with the mowing height and blade size of the grass; for example, higher mowing height causes larger spots. These spots usually won’t get bigger than 8 inches and are commonly misidentified as animal urine damage. Your lawn will most likely show signs of this disease when it is low in nitrogen. This means that you may be fertilizing infrequently, using an organic fertilizer with low nutrient content, or a soil problem may be blocking the uptake of nutrients. Be careful, though, because using too much fertilizer can predispose the grass to other diseases.
This lawn disease can show up in a few different ways, such as producing an hour-glass lesion bordered by a purple band, or it might start browning from the tip down. When the roots become damaged, the grass will shed the damaged roots and replace them with new ones, to no avail. The new roots will experience the same cycle, essentially starving the grass. It can be spread easily, by mowing or foot traffic. In extreme cases, these spots can grow up to several feet in diameter and form highly irregularly shaped patches.
Dollar Spot Lawn Disease will not become severe if treated quickly enough, usually with an application of water soluble nitrogen for blade growth. Grass is more susceptible to disease when it is under stress, such as when it is low in nitrogen, resulting in a struggle to produce chlorophyll and carbohydrates. Another factor that can cause stress is over watering and shallow watering. Only water when the grass is in need of it, and water deeply to wet the soil 3-4 inches down. Shallow watering leads to shallow rooting and the grass then becomes stressed during dry, hot weather. A balanced fertility program is necessary, as well as reducing dampness as much as possible. If reseeding becomes necessary, use a more resistant variety to deter such lawn diseases.
Could our services be the answer to your lawn problems? Call Rainy Days Irrigation today at (919) 779-9285 and one of our trained technicians can advise you on the best solution for your drainage and irrigation issues.
Rainy Days Irrigation, Inc. | 115 Sigma Dr. | Garner, NC | (919) 779-9285
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