6 7 See our website for more information Cultural: Ensure adequate drainage; reduce surface moisture; maintain appropriate fertility; control thatch layer; encourage morning sunlight penetration; relieve compaction; increase cutting height. Biological: Discourage annual meadow-grass in the sward. Chemical: Effective fungicides are available. Timing of application dictates optimal performance. Preventative use during periods of high disease pressure provides optimal control. Use at the very first signs of disease (before it gets into the grass plant) can control disease but is higher risk and may require recovery period. Liquid fertiliser applied at first signs of disease after fungicide application will help turf recover from infection. Management Symptoms Basal rot: Youngest leaf brick red, other leaves bright yellow, black rot at base of stem. Foliar blight: Irregular patches of turf turn tan and die. Small black acervuli with hair like setae can be seen with a x10 hand lens. Susceptible grass species Basal rot: mostly affects annual meadow-grass. Foliar blight: affects all grasses but annual meadow-grass is most susceptible. Time of year Basal rot: Autumn and Winter Foliar blight: Summer Climatic conditions Basal rot: Cold and wet Foliar blight: Warm and wet Turf conditions High stress, low fertility (nitrogen especially but also potassium and phosphorous imbalances), compaction, moist surface with dry soil, low cutting height. Anthracnose Disease Risk Indicators WINTER JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC SPRING SUMMER AUTUMN WINTER TURF STRESS TEMPERATURES HIGH HIGH LIGHT LONG DAYS BASAL ROT FOLIAR BLIGHT
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