Warning: The information in this archived item was not confirmed with the appropriate National Plant Protection Organization and is provided solely for informational purposes. Please use this information with caution.

Subject: New Russian wheat aphid (Diuraphis noxia) strain reported in Colorado
Date posted: June 12, 2003
Source: Crop Watch, University of Nebraska
A new strain of Russian wheat aphid, Diuraphis noxia, was reported by entomologists in Colorado. This strain of the Russian wheat aphid can cause severe leaf striping and leaf curling to previously resistant wheat lines such as Halt, Prairie Red, Prowers 99, and Yumar. The extent of this aphid's distribution is not yet known.

For the full story see: http://cropwatch.unl.edu/archives/2003/crop03-12.htm#grasshoppers

For more about Diuraphis noxia see the following websites:

http://www.ceris.purdue.edu/napis/pests/rwa/

http://www.ipm.ucdavis.edu/PMG/r730300211.html