,
 

Algae

 
 
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Disease description
Dark green, dark brown or almost black slippery growth may cover lower parts of plants and soil surface in humid conditions. This may dry up to form a crust. Grass is not killed, but growth may be impaired.

Predisposing factors
    • over-compaction and soil surface smearing by foot traffic or implements, especially on heavier soils
    • poor surface drainage
    • shaded situations
    • heavy applications of high organic amendments
Cultural control
Scarify surface to alleviate problem. Improve soil and drainage. Aerate.

Chemical control
No material registered in Canada.

For information about other diseases that affect turf grasses, go to Major Diseases of Turf Grasses in Western Canada.		  
 
 
 
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 May 30, 2002.
Last Reviewed/Revised on November 6, 2007.