What Causes Brown Spots In Grass?

Brown spots in grass happen when too much sunlight has been absorbed by the ground. When soil is over-saturated with sunlight, a fungal infection called Brown Spots In Grass begins to take hold and damage the healthy grass surrounding the unsightly patches. Most often these patches are brownish in color, however they can sometimes be green or even black in some cases. They occur most often around trees, power lines, traffic lanes, or near large patches of vegetation such as Bermuda grass. Brown spots in grass can be very persistent and can last several years if not treated appropriately.

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It is important to know how to correct Brown Spots In Grass before it becomes a huge problem. One important step is to make sure the lawn has adequate amounts of nutrients. Healthy lawns don’t always have ample quantities of nutrients and water. If you have an area that has not received a lot of sunlight during the winter months, you might consider installing an outdoor flood light to help promote grass growth in the summertime. This will provide much needed shade to the lawn when it is too hot in the afternoon.


You should also make sure that the lawn receives enough water. Watering with hoses is the best option for providing water for the grass, but if leaves and debris cover up the water source, they will not be properly transferred to the grass and will instead settle to the ground creating unsightly brown patches. A simple method is to simply use a sprinkler head from the hose to wash away the leaves and other debris. If you live in an area where there is an off season, you might consider using a fall lawn fertilizer to help add nutrients to the soil. Fall fertilization will increase the nitrogen level of the soil, which will help the grass to develop deep roots that will carry the nutrients far into the ground for use by the plants.


Another thing that you can do to improve the health of the lawn is to make sure that the grass is getting the proper amount of sunlight. All of the parts of the grass will need sunlight for vitamins and growth, but certain areas of the grass will need more light than others. If you have some areas of the lawn that are getting fewer days of sun than others, you can provide artificial sunlight to these areas by installing artificial turf. You can purchase turf that will need only a few hours of exposure to the sun, or you can buy turf that is specially designed for sunny areas.

Cutting Grass

Even though the grass will need light for healthy growth, it does not mean that you should let it sit out all season. The grass should be cut regularly to keep the grass from drying out. In addition, the roots will need access to water and nutrients because they are the living part of the grass. You should water your lawn thoroughly during each day and continue to do so throughout the fall. This will help keep the soil moist and the roots from drying out.


When the temperatures start to change and spring comes, you need to fertilize your grass again. This time, you will want to use a fertilizer designed for grass that has darker shades. Some of the best fertilizers for darker colors include blue-green algae fertilizer and fish emulsion fertilizer. You should also check the labels to see if there are any weed killers that you can use on the lawn before the first frost.


Brown spots in grass can also occur due to diseases. Some common diseases include: Stonemine, a disease that occurs when too much calcium is in the soil, Fusarium, which is caused by fungus and Red Wulfenaflutin which is caused by a disease that depletes the nitrate levels in the soil. It is important to note that if you find brown patches in the grass on your lawn, you should make an appointment with a lawn care consultant immediately. There could be serious problems. For example, the entire grass might die, the root system could be damaged or the grass could have been infected with a pathogen.

Fungal Infection

Brown spots in grass can also be caused by fungal infection. If the spots in your lawn are circular and form a rug like appearance, they may be caused by Phytoseioma or Ringsendia. Both can cause hard patches on your lawn that will not dissolve over time. You need to get your grass examined by a professional soon after spotting the problem. If you wait too long, your grass could dry up and die, affecting the quality of the grass for your entire lawn for years to come.