Stripe Rust Alert

by Dr. Juliet Marshall

Stripe rust was found (thanks Dr. Oliver Neher for being so observant!) in the Parma area, on the Parma research station in winter wheat in the boot stage. While not yet severe, I fully expect it to be widespread. Be prepared to spray susceptible varieties as it heads east.

Information on variety reactions is available in our small grains report (in variety descriptions and in an appendix table that describes spring wheat reactions). http://www.uidaho.edu/extension/cereals/scseidaho/sgr

Also check the disease page on our website for additional information: http://www.uidaho.edu/extension/cereals/scseidaho/disease

Dr. David Hole, USU, has found stripe rust in a breeding nursery in Logan, UT. Heading has started. Varieties affected included Lewjain, Lucin CL, and an advanced breeding line. Scouting is recommended throughout southern and eastern Idaho.

Please report additional finds to .Marshall, Juliet (jmarshall@uidaho.edu)