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Lawn Turning Brown

June 20, 2011

There are a range of lawn diseases that show up with warm, humid weather.  These fungus problems are especially active when your night temperatures and humidity do not drop very much from the levels you are experiencing during daytime hours.  These photos show three of the most common fungus problems 1) Brown Patch; 2) Red Thread and 3) Dollar Spot.

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You can help your situation by not watering your lawn in the evening as this helps to hold humidity at high levels next to your grass plants for an extended period of time.  Experts will always suggest that if you have to water, then it is best to irrigate in the morning.  Lawns located where air movement is restricted by a fence or hedge generally experience more lawn disease problems as compared to more open areas.  Many of the grass seed varieties that are available in the top-of-the line seed blends, like the Turf Builder Grass Seed line, have improved resistance to lawn diseases built right in compared to the older grass varieties.  You can help strengthen your grass by not under or over feeding and by mowing at a taller height.

If you need to protect your grass from lawn fungus, Scotts Lawn Fungus Control is a good “systemic” cure, which means the active ingredient is absorbed into your grass plants to protect them from the inside.  (older “contact” controls must stay on the leaf surface becoming less effective as you mow).

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