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How to Control and Treat Lawn Diseases

Diagnosing lawn diseases is not always an easy task. You must look and recognize the many sizes and shape of dead and dying plants, specific spots on leaves, quality of root system, leaf color , time of year, and temperature. When diagnosing a lawn disease it is helpful to have a record of treatments such as fertilizer, herbicides, mowing height and frequency, watering frequency and amounts. Here listed are the various types of lawn diseases including pictures and the treatments that can be used to help maintain the lawn.

Keeping your lawn healthy takes work and effort. And, recognizing the problem goes a long way towards solving it. Here are some tips on how to recognize problems and the solutions you can use to get your lawn healthy and green again.

Brown Patches In Lawn

Many people are having the same question by asking: “Why is my lawn brown?” Well, generally this can be caused by brown patches which are common in many lawns. These brown spot diseases are circular brown spots that can have a diameter ranging from 1 inch to several feet. The grass will look brown and water soaked at first. Then, they will dry out. This lawn problem is most common when the humidity and night temperatures are high. To get rid of this disease you will need to water in the mornings only. Lawn lime will also help. Do not leave clippings on the lawn as this is a environment that fungi will enjoy. If it is possible, reduce the shade on your lawn.

The brown patch is best prevented by aeration of the area, reducing shade, follow regular fertilization schedule and avoiding over fertilization. Fungicides like chlorothalonil andbenomyl usually work best in such cases.

brown patches

Cottony Blight

Cottony blight is common in lawn grasses with damp soil in areas that are hot and humid. If you see fungi that is cottony in appearance your lawn has this disease. It is easiest to see in the dampness of early morning. The best remedy is to reduce the nitrogen, improve the drainage and increase the circulation. The circulation can be increased by pruning or thinning shrubs in the surrounding area. You will also need to reseed the affected area.

Cottony Blight

Fairy Rings

Fairy rings are circular rings that can range in size from a few inches to 50 feet in diameter. This fungi does not attack the grass, it interferes with the roots. It will prevent the root system from taking in water, oxygen, and nutrients. This lawn disease can be controlled by soaking and feeding the area. The only cure is replacing the sod or fumigating. These remedies are expensive, so it is best to be sure to keep the area watered and fertilized.

Fairy Rings is a lawn disease that can easily be treated. It tends to look like dark circles or mushroom circles. If you see the mushroom circles you can just rake them off. They really have no effect on the grass, but if you see dark circles, this is the real disease. The circle will get bigger every year if left untreated. This is not a serious problem, but more of a cosmetic one. Treatment: Apply ample amounts of water, and use a good fertilizer to stabilize the root system.

Fairy Rings

Fusarium Blight

A common disease that may afflict your lawn is Fusarium blight. It is most common in the central and northeast states of the US. It can be detected by small tan spots that will appear in early summer. It is best to prevent this disease, rather than try to cure it. Use seed or sod that are resistant to blight. Be sure to water your lawn thoroughly.

Fusarium Blight


Yellow Patch, also known as Rizoctonia, is one of the most common lawn diseases around. It’s more commonly seen in Kentucky Blue grass, although can be found in many other various grasses. This disease usually occurs in cold wet weather. It look like patches of yellow and light green throughout the grass. Treatment for this: Improve the soil irritations, and maintain the water drainage. You will also want to apply a fungicide to the lawn.


Necrotic Ring Patch

Necrotic Ring Patch is another common lawn disease of the Kentucky Blue grass. It looks like circular donut shaped round patches of dead grass. The color ranges from light green to yellow straw covered spots. Treatments: Maintain the turf at a height of 2 ½ to 3 inches. Remove no more than 1/3rd of the blade at any one mowing. Do not apply excess amount of Nitrogen fertilizers. This can worsen the situation. Also you will want to avoid over watering, and apply a fungicide product to help kill the disease.

Necrotic Ring Patch

Moss an Algae

Moss an Algae is another common lawn disease. You can control this easily by having adequate drainage,and increasing air intensity throughout the lawn. You can also find chemical controls for moss at your local home store.

Moss an Algae

Dollar Spot Fungus

Dollar spot can start out as small brown or straw-colored spots about the size of silver dollars. They too can spread and are most common in the early summer and early autumn with humid condition. It can get worse if lawns are lacking the nutrients necessary for growth.

It is not a difficult task for you to discover and take care of dollar spot fungus. Such lawn fungus having its name due to the straw-colored, silver dollar-sized spots that spotted on the yard.

When inspecting the symptoms of dollar spot fungus, you should look at the other areas as well other than the infected spots especially those fringe areas. Check and see if any of the healthy substance and section is start getting unhealthy, and then carry out the full analysis on all levels of the dollar spot fungus disease.

dollar spot fungus

How To Improve Your Lawn?

By seeing the lawn diseases pictures above, you may now keen to know how to taking good care of your lawn. If you want to know how to keep your lawn remain healthy all the times, along with the many lawn maintenance, and care you always need to remember to :
– Adequately water the lawn. Do not over water.
– Try to aerate the grass yearly
– Use a good nitrogen fertilizer once or twice a year. No more than that because it will kill the lawn.
– Use a good weed control chemical that will maintain the weeds but not kill the lawn.

Essential Lawn Care Tips

Golfing lawns, football pitches and cricket grounds all have excellent quality grass which many gardeners home to achieve in their back yards. Yet keeping a good lawn is more than throwing out some grass seeds and letting the rain do it’s work: your lawn needs the same level of care than your roses do, so here we have collated a list of lawn care tips to help you get the lawn you want:

lawn care
lawn care

1.) Soil Ph levels

One of the most common culprits to bad lawn growth is the ph levels of the soil. Soil in your garden is just as prone to collecting pollutants and harmful chemicals that make poor breeding ground for grass in much the same as flowers. In order to make sure you are using the right products and treatments for your lawn, it is essential that you start off in the best possible way by measuring and checking the ph levels of the soil your grass is growing on. This is easily done by contacting your local eco advisory service or board, who will give you a sample bag to take a test of your lawn, and respond to you with the correct products you will need to restore the soil to optimum nutrient levels that you need in order for healthy grass to grow.

2.) Watering

Many gardeners will know that it’s a good idea to put the sprinklers on when the weather becomes dry, but what many do not know is that watering your grass in the morning gives it the best chance for healthy growth. Overwatering can also be as much of a harmful issue than under watering, so if you have watered your grass , wait for it to dry before watering it again to make sure you are not drowning your grass.

3.) Mowing

Moving the grass is another must do in order to keep it health. Rather than letting your grass grow to danger levels and then cutting it as short as possible to save time and energy, it is better to mow your lawn regularly to around an inch or two high, which is the optimum height for healthy grass to grow. Cut shorter than this, and the roots of your grass will be overexposed to sunlight and pollutants, leave the grass to grow too long and the shade of the longer blades of grass will underexpose the roots to the sunlight, water and nutrients that it needs: both overgrowth and over cutting will lead to the same conclusion: death to your grass.

4.) Nutrients for your grass

Just like flowers, grass needs nutrient to thrive and so if you are treating weeds and other unwanted visitors to your lawn with harsh chemicals, you are polluting your grass with the same chemical. In order to balance out the treatments you are cutting on your lawn in the form of weed killer and other harsh treatments, remember to give your grass nutrient also. A cheap and easy way to do this is to scatter mowed grass over your lawn, leaving it to decompose on the grass and fill the soil underneath with valuable nutrient which will help it to grow.

If you follow these simple steps your lawn should be looking great in no time at all. However, if you still are suspicious of the health of your lawn and want to seek for professional advice, then the best thing for you to do is to bring in the specialists to perform a healthy lawn examination and analysis on your lawn and cure all identified diseases. You’re going to have your lawn stay healthy all the time from now on.

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