Cottony Grass Scale

August 28, 2017

This past week we were received an email and pictures from Earl Evans a groundskeeper in LeMars, IA of an outbreak of cottony grass scale (Eriopeltis festucae). Dr. Donald Lewis, Iowa State University Entomologist has noted he hs only seen it twice in his career. Dr. Lewis has written an article about cottony grass scale and it can be viewed in the Home and Pest Newsletter. The only other time cottony grass scale was documented in Iowa was in 2009 and that link is available 2009 cottony grass scale. Also the University of Minnesota has some information on cottony grass scale from a previous diagnosis. 

Cottony grass scale damage in LeMars. Photo courtsey of Earl Evans.
Cottony grass scale damage in LeMars, notice the tire tracks are not damaged. Photo courtesy of Earl Evans.

A close up of cottony grass scale on the leaves. Photo courtesy of Earl Evans.
A close up of cottony grass scale on the leaves. Photo courtesy of Earl Evans.

 

Another close up of cottony grass scale on the leaves. Photo courtesy of Earl Evans.
Another close up of cottony grass scale on the leaves. Photo courtesy of Earl Evans.

 

Category: 
Tags: 
Author(s): 

Adam Thoms Assistant Professor

Adam Thoms, Ph.D. - Assistant Professor specializing in Commercial Turfgrass Management, Iowa State University, Department of Horticulture, Ames, IA. Dr. Thoms received his B.S. from Iowa State University, and both his M.S. and Ph.D. in Plant Sciences and Plants, Soils, and Insec...