What Causes Brown Spots in Grass?
Most home owners have had to deal with unsightly brown spots in their lawn at one time or another. You may be tempted to simply patch the bare spot, but before you do that, you need to find out what caused the problem in the first place. Once you have identified the problem, you can correct it so the bare spot does not reappear. Several different things can cause brown spots in grass. Does this Spark an idea?
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Incorrect Mowing
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Mowing the lawn with unsharpened blades or mowing too low causes the grass and soil to dry out quickly. If the grass does not get enough moisture, it turns brown.
Compacted Soil
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Traffic, soil type and heavy rain all contribute to soil compaction. Grass roots do not grow well in compacted soil which may cause the green tops to turn brown and die.
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Thatch
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Over time grass develops a layer of thatch on top of the soil. Thatch inhibits oxygen, water and nutrients from reaching the roots. This eventually causes the grass to weaken and die.
Heat
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Heat from car and mower exhaust can produce brown spots in your lawn. Heat can also be reflected onto the grass from nearby walls and pavement.
Harmful Substances
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Gas and oil are harmful to grass. Rain can wash oil and gas from your driveway onto your lawn, causing brown spots. Dog urine also causes brown spots, especially if your dog tends to relieve himself in the same spot.
Underground Objects
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Underground objects, such as rocks, bricks or concrete, can cause brown spots in your lawn if the layer of soil above is not thick enough for good root growth.
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