Causal Agent: Rhizoctonia solani
Susceptible Turfgrasses: Wintergrass, Couch, Bentgrass, Fescues, Kentucky Bluegrass, Ryegrass & Buffalo Grass.
Symptoms
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Brown discoloured circular patches, from a few centimetres up to a metre in diameter, sometimes with a smoke ring of mycelium around the edges.
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“ Smoke rings” appear as thin brown borders around the diseased patches appearing in the early morning.
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Infected leaves are water-soaked and dark, later dying and turning dark brown.
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After the infected leaves die, new leaves can emerge from the surviving crowns.
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On wide bladed species, leaf lesions develop with tan centres and dark brown to black margins.
Conditions Favouring Disease
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High relative humidity and temperatures of over 28°C during the day and over 15.5°C at night.
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More than 10 hours a day of foliar wetness for several consecutive days.
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Turfgrass species are most affected when night temperatures are consistently above 20°C with high humidity or moisture.
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Products to Use Brown Patch
Quali-Pro Enclave Fungicide
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VELISTA is a powerful broad spectrum fungicide that can be used all year round and can be trusted to keep your turf…
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Evolution Fungicide is a premium, fungicide mixture containing 120 g/L of the active ingredient Azoxystrobin and 200 g/L Tebuconazole. This unique…
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Fore Rainshield
48% Mancozeb Fore Rainshield is a broad spectrum protectant fungicide containing 480g/L of the active ingredient Mancozeb formulation offers superior spreading…
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Medallion Turf Fungicide offers contact plus – exceptional spore busting capabilities on the leaf, in the thatch, and on the soil surface.…
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10% Trifloxystrobin + 20% Tebuconazole Dedicate turf fungicide contains two active ingredients with two different modes of action, providing curative and…
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Headway Maxx
Headway Maxx combines the strength, longevity and broad spectrum of Heritage MAXX with the speed and early curative action of Banner…
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Daconil Weather Stik is a contact fungicide that can be used in preventative programs. It can be used as an early…
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Banner Maxx is an excellent choice as an early curative treatment, providing systemic broad spectrum control of major turf diseases including…
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