Brown patch (Rhizoctonia solani) is a turf disease that occurs during summer, when nitrogen is high, the weather is humid and the soil is thatchy and poorly drained. Symptoms are rapidly enlarging circular or irregular patches up to 0.5m in diameter. A dark purplish or greyish border may be visible in early morning.
Sometimes turf recovers from the centre, resulting in a ring of diseased turf. Brown patch can be prevented by regular scarification, if necessary, to reduce water-holding thatch. As Brown patch is favoured by high nitrogen fertilisation, applications should be light and frequent rather than in one large application.
Approved fungicides can control the disease.
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FR321 is the optimum tank mix combination and rates for when you need the powerful balance of contact and systemic fungicide activity in one application – plus the colour and quality advantage of Ryder.
Heritage is an extremely effective systemic strobilurin fungicide for the control of Microdochium patch, Take-all patch, Anthracnose, Brown patch, Leaf spot, Rust diseases and Type 2 Fairy rings in turf.
Heritage Maxx is a systemic strobilurin fungicide for the control of Microdochium patch, Take-all patch, Brown patch, Leaf Spot/ Melting Out, Rust diseases, Anthracnose and Type 2 Fairy Ring. Now subject to withdrawal notice. The timeline for the withdrawal of Heritage Maxx is as follows: 24th June 2023 for sale and distribution, 24th March 2024 for the disposal, storage and use of existing stock.
Instrata Elite is a broad spectrum foliar fungicide with both contact and systemic properties for control of Microdochium Patch, Dollar Spot, Brown Patch and Anthracnose in managed amenity turf.
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