I
would like to pass along the stripe rust update from Dr. Xianming Chen,
USDA-ARS scientist in Pullman, WA.
Our
October weather conditions have been conducive for stripe rust, so please report
any locations that you see with infections.
The
good news is, there was a good, dry break between harvest and planting next
year’s winter wheat. While this will reduce the chances of fall stripe rust
infections transferring from infected volunteer wheat, it is important to scout
susceptible varieties to determine if we have infection and have the potential
for overwintering of the fungus.
If
you have symptoms in the field that you have questions about, send me a
picture. I can often tell easily if it is stripe rust.
If
you know it is stripe rust, send me a picture with the location(s) and
varieties so we can keep track of those locations in the spring 2017. An early
warning will help us prepare. We usually do not recommend fall application of fungicides,
as infected leaves and the fungus often die over the winter.
Cheers,
Juliet
Juliet Marshall, Ph.D.
Associate Professor, Cereals Pathology and Agronomy
Idaho Falls R&E Center
1776 Science Drive Suite 205
Idaho Falls, ID 83402
208-529-8376 office
208-390-4859 cell
Report from Washington Follows