How to Prevent Lawn & Grass Diseases

Stop Them before They Start

When it comes to dealing with lawn diseases, the old saying holds true: “an ounce of prevention is worth a pound of cure.” It’s easier to prevent lawn diseases than to cure them. Following these basic guidelines for a strong lawn will help you protect your lawn from fungal diseases.

Feed Your Lawn Regularly

Feeding you lawn is the most important things because nutrient deficiencies weaken your grass plants. At the very least, you need to feed you grass plants twice a year. You need to feed your lawn three to four times a year if your lawn is used for kids activities or parties. A well-nourished lawn can easily fight against the disease.

If you are just a starter and have no idea about how to feed a lawn, you can find a lot of feeding programs online. The feeding programs provide you complete details regarding what to feed, when to feed, and how to feed.

If You Need To Water, Water Properly


Most of the lawn diseases occur while the grass blades are wet. So, the key is to keep them dry and only water when it is required. Whenever you decide to water, make sure that you water deeply so you don’t need to water too often. The best time for watering your grass plants is between 6 am to 10 am because it provides a lot of time to grass blades to get dry during the day. The worst time to water the lawn is after 5 pm because the grass blades will remain wet all the night, attracting various leaf diseases.

Mow Regularly at the Right Height


Mowing too short weakens the grass plant, making it more susceptible to infection. Most grass types should be mowed using a high (3-4 inch) mowing setting. Bermudagrass grass in the south should be mowed using a lower (1.5 to 2 inches) mower setting and zoysiagrass should be mowed using a middle (2-3 inches) setting. Mow often enough so that no more than ⅓ the height of the grass blade is removed at one time.

Apply Fungicide if Needed

To control lawn diseases such as brown patch and dollar spot – or help prevent them if you have had disease problems in previous years – apply a fungicide made for lawns. There are various organic fungicides available in the market that provide systemic disease prevention and control. You can apply anytime on all lawn types. Just be sure to follow the directions on the label.

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