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Blister Smut | |
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| | Entyloma dactylidis
Disease description
Blister smut of Kentucky blue grass and other turf grasses. Water-soaked spots appear on lower leaf surfaces. Linear, rectangular or round blisters, measuring 0.1 to 1 mm, are often surrounded by a yellow halo. Blisters darken to almost black and are covered with a lighter skin. May cause considerable damage. Probably more common than reported and overlooked where Drechslera spp. leaf spots are abundant. Found on P. annua in Alaska. Related species are found on red fescue in B.C.
Predisposing factors
- mild winters
- susceptible cultivars
Cultural control
Use resistant cultivars of Kentucky blue grass, or other grass species. At Agassiz, Baron, and Victa were severely infected, but Majestic, Merion, Nugget, and Sydsport showed no disease. Baron was also susceptible in western Washington. Encourage rapid spring growth by ensuring adequate nutrient and water supply.
For information about other diseases that affect turf grasses, go to Major Diseases of Turf Grasses in Western Canada. |
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For more information about the content of this document, contact Ron Howard.
This document is maintained by Shelley Barkley.
This information published to the web on November 20, 2001.
Last Reviewed/Revised on November 6, 2007.
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