How To Avoid Brown Spots On Your Lawn
A picturesque landscape is easily ruined by patches of dry, brown grass. Luckily, avoiding brown patches is possible with just a few preventative measures. Learning what causes patchy, brown grass is the first step toward a lush, green lawn.
What Causes a Patchy Lawn?
Overwatering and using too much fertilizer are among the most common causes of brown patches on lawns. Other causes include the following:
Mowing with a dull lawn mower blade
Pests in the soil
Pet urine
Grass is more susceptible to infections, such as fungal infections, when it is stressed. The most common fungus that affects lawns is rhizoctonia, which causes brown patch disease. The disease is easily recognized by the patches of dead grass that are edged by a dark, soot-colored ring. The fungus is most active in hot, very humid weather.
Watering and Fertilizing for Lawn Health
Preventing brown is often as simple as changing your lawn care routine. Use fertilizer sparingly and only in areas where it is clearly needed, and limit watering to once per week unless the weather is very dry. In very dry weather, water grass early in the morning to ensure the grass dries before nightfall.
If the affected grass is limited to a small area, check your watering system for leaks. Even a small leak can cause patches of brown grass if the soil is saturated for an extended time.
Sharpening your lawn mower blade regularly also prevents brown patches of grass. Have your mower blade sharpened at the beginning of Spring and again in midsummer, or anytime you notice your mower isn't cutting as well as usual. A sharp blade makes clean, even cuts that heal quickly. Using a dull blade can lead to lawn stress, which leaves grass more susceptible to disease.
Pets and Lawns
Pet urine can transform your lawn into a patchwork of dead, brown grass. To avoid damage caused by pet urine, block affected area areas of the lawn, and amend the soil to rebalance pH levels before reseeding.
If possible, encourage your pet to play in new parts of the property each day to reduce urine accumulation in one specific area. You can also gift your pet with their own, less visible, corner of the lawn so you don't have to worry about damage on the remaining lawn.
Preventing Disease
Most lawn problems are preventable, but fungi and pests may invade even if you have a flawless lawn care routine. Early detection and proactive treatment is an effective way to manage pests and disease.
Use a fungicide, or another appropriate lawn care product, to treat fungi and other diseases as soon as you notice a problem. You can also consider treating your lawn with beneficial nematodes to prevent pest damage.
Nematodes are safe for humans and pets, but these tiny insects help keep lawns healthy by eliminating soil-dwelling pests that damage grass, such as beetle larvae that eat grass roots. With careful maintenance and proactive lawn care strategies, preventing brown patches is effortless.