Irrigating turf at night during hot and humid weather may exacerbate brown patch symptoms and create the need for fungicide applications to control the disease. Ideally, watering should be done in early morning or at other times of the day in time for the grass to dry before nightfall. For high-value turf, use blends of brown-patch tolerant cultivars of tall fescue, perennial ryegrass, and creeping bentgrass.
Fungicide treatment is sometimes needed on high-value perennial ryegrass or bentgrass turf stands. In areas where brown patch causes severe thinning on sports turf and golf course putting greens, tees, and fairways, preventative fungicide applications may be justified.
Fungicides can also be used on a curative basis, with the first application being made immediately after the onset of symptoms, especially if prolonged hot, humid weather is expected. Contact fungicides do not penetrate plant surfaces and only inhibit fungal pathogens residing on leaf and stem surfaces. Buhler, W. Fungicide spraying by the numbers. Clarke, B. Koch, and G. Chemical control of turfgrass diseases Latin, R.
A practical guide to turfgrass fungicides. American Phytopathological Society Press, St. Paul, MN. Let's Stay Connected. By entering your email, you consent to receive communications from Penn State Extension.
View our privacy policy. Thank you for your submission! Brown patch is a major summer foliar disease of golf courses, athletic fields, home lawns, parks, and institutional grounds, caused by the fungus Rhizoctonia solani. Photo: Pete Landschoot, Penn State. Symptoms and signs On high-cut turf, brown patch symptoms usually appear as light brown circular patches ranging from a few inches up to several feet in diameter. Photo: Robert Rudolph Figure 3. Photo: Peter Landschoot, Penn State On tall fescue, symptoms of brown patch can be observed on individual leaves, appearing as irregular tan or light brown lesions surrounded by dark brown borders.
Augustine in general. Brown patch is the first one that comes to mind. Brown patch is those brown circles that appear in the spring and the fall when the nighttime temperatures are cool, but you have the warm daytime temperatures. Brown patch usually appears in the wetter, low lying areas of your yard. They start there, then they spread out. Brown patch fungus can be controlled. The best way to control it is to get out ahead of it.
We now recommend Heritage G fungicide for brown patch prevention and treatment. We stock this product at our Arcola office, so call us at for more information.
Early September you get a bag of the Scotts Lawn Fungus Control as a granule, you put it out the same way, you put out your fertilizer and your spreader and you water it in, and then about three or four weeks later, I think the bag says you follow it up with another application and that kind of keeps it at bay and does a real good job.
If you have questions about brown patch or the best grass varieties for your next grass project, please call us at today. I grew up in the grass business on our family farm in Bay City, TX, so I have the knowledge and the experience to help you make your next grass project a success. Apply A Preventative Fungicide. If your lawn has experienced brown patch damage in the past, you can apply a preventative fungicide product at about or before conditions are right for this disease to develop, which is prolonged heat and humidity.
Products needed for Step 1. Heritage G Fungicide. Clearys F Fungicide. Eagle 20EW Specialty Fungicide. Fame Granular Fungicide. Step 2. Lawn diseases can not only make your yard unsightly, but they can also kill them. In this video we will show you the basics you can do to treat and prevent lawn disease.
The most important factor in treating a lawn disease is timing. Identifying and treating early can save your lawn. Be sure to purchase a fungicide that is specifically formulated for the lawn disease you are treating.
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