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Brown patches on the lawn can pop up for a variety of reasons. Here are a few of the main ones: Fungal Diseases: One of the usual suspects is a brown patch fungus, especially when the weather is ...
Brown patch symptoms differ depending on the various maintenance practices performed on the turfgrass (mowing height, fertilizer, watering, etc.) Symptoms on turfgrasses that are wet for extended periods and are closely mowed will produce a distinctive gray-purplish bordered ring "smoke-ring" that is up to 50 cm in diameter. [3]
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Turf melting out begins as black to purple spots on the leaf blades. These spots eventually appear on the leaf sheaths. The fungus then begin to move down and invade the crowns and the roots of the plants. From far away, the turf appears yellow or blackish brown. The colors that appear on the turf directly reflect the nitrogen levels in the ...
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The rings turn from yellow to light or reddish brown as the disease progresses. [5] The disease is most noticeable on putting greens and commonly occurs in the spring with rising temperatures. [4] [6] Brown ring patch is similar to other Rhizoctonia species, but appears to infect upper roots, crowns, and stems as well as foliage of individual ...
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