YELLOW TUFT
Caused by: Sclerophthora macrospora (Sacc.) Thirumalachar, C.E. Shaw & Narasimhan
Plate 1: Yellow tufts
Description
Small spots 1-3 cm in diameter of yellowed densely tillered plants with shortened roots, that are easily pulled from the turf (Plate 1).
Where is yellow tuft found?
Close mown turf, especially golf greens and bowling greens.
In the UK yellow tuft has been observed mostly on Agrostis spp.
When is yellow tuft likely to attack turf?
During cooler, wetter months in spring and autumn
Effects of yellow tuft
The tufts reduce the wear tolerance of the sward as they can be easily pulled out.
Tufts can also affect playability by affecting ball roll and the aethestic appearance of the grass.
High risk situations
Soil saturation, flooding, poor drainage
Low lying areas
Cool weather conditions
Moisture retentive turf surface.