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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.

If You Need To Water, Water Properly

Many diseases infect lawns when the grass blades are wet. To keep grass blades dry, water only if needed and water deeply so you can go longer between watering. Watering in the morning, between 6AM and 10AM, is best since the grass blades have plenty of time to dry during the day. Especially avoid watering late in the day or at night, since the grass blades will stay wet all night long, encouraging leaf diseases. One simple way to ensure that your lawn gets just the right amount of water at the right time is to buy a smart controller. It automatically adjusts itself based on real-time local weather data and can be monitored from anywhere via your smartphone or tablet. When disease hits your lawn grasses, control can be difficult unless you know how to identify lawn and grass diseases and understand the causes behind them. Many common lawn and grass diseases have fungal problems at their source. Fortunately, proper lawn maintenance and care prevent and resolve most fungal lawn diseases.


In order for fungal diseases to strike, three factors must be in play: disease pathogens, weather conditions that favor disease development, and susceptible lawn grasses. Without all three factors present, grasses keep the upper hand. While you can't control the weather, you can recognize fungal threats, learn how to identify lawn and grass diseases, and take action.


Once you identify a lawn or grass disease, good lawn maintenance can help prevent and correct it. Prevention and prompt adjustments in lawn care at the first signs of trouble restore the advantage to your lawn. Keep your lawn at its competitive peak with these fungal-fighting practices:

1. Keep soil pH at a level lawn grasses need
2. Fertilize properly
3. Water for lawn health, strength and resilience
4. Choose premium, water-wise grass seed products
5. Follow good mowing practices
6. Dethatch lawns and aerate soil regularly
7. Use pesticides for severe infestations

Use pesticides for severe infestations. When corrections alone aren't sufficient, choose pesticides specifically approved for the disease at hand. By recognizing conditions that promote fungal lawn diseases and learning to identify grass diseases, you can circumvent their threat and solve lawn disease problems promptly.

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 broad spectrum fungicide made for lawns. You can apply any time on all lawn types. Just be sure to follow the directions on the label.

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