Causal Agent: Pythium spp.
Susceptible Turfgrasses: Cool and warm season turfgrass species.
Symptoms
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Pythium Leaf Blight appears suddenly during hot, humid weather.
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Patches occur these patches can enlarge at a rapid rate.
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In the early morning, grass leaves appear water-soaked and dark in patches.
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When rubbed between the fingers, these water-soaked patches feel oily.
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Infected leaves become light tan to brown, shrivelled and matted when dry.
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When humidity remains high, especially at night, the collapsed leaves become matted and covered with a fluffy white mass of fungal mycelium.
Conditions Favouring Disease
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Hot days (30-35°C), humid or rainy weather when night temperatures are warm (above 20°C).
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Relative humidity exceeding 90% for at least 14 hours and a minimum temperature not falling below 20°C.
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Lush, dense grass growing under high nitrogen fertility is especially susceptible to attack.
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Turf areas with poor drainage and air circulation.
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Products to Use Pythium Leaf Blight / Damping Off
Segway 400SC Fungicide
Segway® 400SC Fungicide from ISK Biosciences is a revolutionary new fungicide, providing Australian turf managers with a reliable new tool in…
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Controls a broad spectrum of diseases in crops including apples, almonds, grapes, pears, pistachios, stonefruit, strawberries and ornamentals.
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A systemic fungicide for the prevention and control of Phytophthora rots in ornamentals and Pythium in turf as specified in the…
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Triumph Fungicide is a targeted Pythium fungicide containing 240 g/L of the active ingredient Metalaxyl-M. It is specifically registered for the control…
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Vantage Fungicide
Vantage Fungicide is a broad spectrum, systemic fungicide containing 95 g/L of the active constituent Azoxystrobin, a trusted chemistry for Australian…
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Subdue Maxx
Subdue Maxx is a systemic and residual fungicide providing up to 21 days control, making it ideal for the control of…
Read moreSignature Stressgard
Signature Stressgard is a true systemic fungicide containing 800 g/L Fosetyl-Al, which travels up and down within the plant. Signature Stressgard…
Read moreHeritage Maxx
Heritage Maxx contains 95g/L azoxystrobin which combines systemic activity through xylem mobility, translaminar movement to encourage multi-site uptake and even distribution…
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Headway Maxx combines the strength, longevity and broad spectrum of Heritage MAXX with the speed and early curative action of Banner…
Read moreFosetyl 800
Fosetyl 800 is a rapidly absorbed fungicide that is taken up by the plants leaves or roots and travels with upwards…
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