Home Identification Guide Disease Identification Guide

Disease Identification Guide

Pythium spp
Pythium spp

Monday, January 31st, 2011

Damping off Patches 5 – 7.5 cm dia Red – yellow colour Festuca, Agrostis & Poa affected Too higher...

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Gaeumanomyces graminis
Gaeumanomyces graminis

Monday, January 31st, 2011

Take-all Fungal attack of roots Rings 0.1 – 1m dia Mainly Bent grasses affected Summer/Autumn Water logged soils Sudden...

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Cristella confinis
Cristella confinis

Monday, January 31st, 2011

Thatch fungus Feeds upon thatch layer Develops from small patches to areas of 25-30cm Area infected becomes slightly depressed...

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Lycoperdon spp
Lycoperdon spp

Monday, January 31st, 2011

Type 2 Fairy Ring Basidiomycete fungi Stimulated growth due to release of surplus N Often camouflaged with extra fertilizer

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Marasmius oreades
Marasmius oreades

Monday, January 31st, 2011

Type 1 Fairy Ring Basidiomycete fungi Feeds on soil organic matter, as little as 3% soil OM Does NOT...

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Myxomycetes spp
Myxomycetes spp

Monday, January 31st, 2011

Slime mould All grasses affected Jelly like in appearance Green – Black in colour Becomes crusty when dry Easily...

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Puccinia spp, Uromyces spp
Puccinia spp, Uromyces spp

Monday, January 31st, 2011

Rust Poa pratensis, Lolium perenne Cold weather periods in summer & autumn Yellow/orange appearance with large orange ‘Pustules’ these...

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Laetisaria fuciformas
Laetisaria fuciformas

Monday, January 31st, 2011

Red Thread Festuca rubra, Lolium perenne Insufficient available nutrient during periods of active growth Bleached grass Pink mycelium visible...

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Drechslera poae
Drechslera poae

Monday, January 31st, 2011

Leaf Spot/Melting Out Poa pratensis Late summer Browning & gradual death of plant Leaf spots have a pale centre...

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Brown Patch
Brown Patch

Monday, January 31st, 2011

Rhizoctonia solani Circular brown patches up to 3 feet in diameter, with a greyish-black halo when dew is present....

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Colletotrichum graninicola
Colletotrichum graninicola

Monday, January 31st, 2011

Anthracnose Infected plants rot at the base Leaves become Yellow Plant easily pulled out with ease Poor growing conditions:...

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Dollar spot
Dollar spot

Monday, January 31st, 2011

Sclerotinia homoecarpa (Lanzia & Moellerodiscus spp) Yellow-green patches Become bleached Constriction of the grass leaf Low N levels Irregular...

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Fusarium
Fusarium

Monday, January 31st, 2011

Microdochium nivale Orange-brown patches 2.5 – 5 cm High humidity Lush growth (N fertilizer) Wet soils pH 6 –...

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