The Washington Grain Commission held its 2017 Wheat and Barley Research Review on February 13 and 14. This is an annual event that gives growers and other industry members the opportunity to see results from research the Commission funded the previous year and hear about new research ideas that the Commission will consider for funding in the coming year.
Researchers from WSU and from the USDA-ARS came together to give brief presentations on their proposed research or updates on their previously funded research and answer questions from Commissioners and growers. The 2016-2017 Research Progress Report is available for review on the Wheat and Small Grains website.
Rust Update, July 11, 2017
- Rusts in the Palouse Region
We were checking fields of wheat and barley in the Palouse region (including Whitman County of Washington and Latah County of Idaho) on July 7, 2017. Winter wheat crop ranged from soft dough to almost mature, spring wheat crop from boot to milk, and spring barley from headed to milk. The rust situations are the following.
Wheat stripe rust. Active stripe rust pustules were still found on green leaves of some winter wheat fields in both commercial and experimental fields. For spring wheat, stripe rust reached 100% on susceptible varieties in experimental fields around Pullman. In commercial fields, stripe rust was low, less than 1% incidence and up to 10% severity in most fields checked. The low level of stripe rust in commercial fields is due to cultivar resistance and/or application of fungicides in the early season. With the dry and hot weather conditions in the last couple of weeks and similar weather conditions forecasted for the next two to three weeks, HTAP resistance in many spring wheat cultivars has become effective and stripe rust development will be slowed down or stopped. Except fields of very late crops and still have good soil moisture, fungicide application is no longer needed.
Barley stripe rust. Low to moderate levels of barley stripe rust were observed in experimental fields. In commercial fields, stripe rust was found at very low level in only one barley field in Latah County.
Wheat leaf rust. In monitoring and variety trial nurseries, leaf rust was found in plots of several winter wheat. In commercial fields, leaf rust was also found in several winter wheat fields near Farmington in Washington and Potlatch in Idaho. Incidence was less than 1% and severity less than 10%. No leaf rust was found in any spring wheat fields.
Stem rust. No stem rust was found in any of winter and spring wheat fields, and nor in barley fields.
- Rusts in Western Washington
In our experimental nurseries at Mount Vernon in western Washington, wheat stripe rust reached 100% severity on susceptible spring wheat by the end of last week. Barley stripe rust was up to 60% severity. Wheat leaf rust was low. In contrast to the situations of severe barley leaf rust in the recent years, barley leaf rust was much lower this year, which could be due to the relatively late planting.
- Wheat Stripe Rust in the US and Canada
Wheat stripe rust has been reported in Texas, Louisiana, Arkansas, Mississippi, North Carolina, Oklahoma, Kansas, Washington, Oregon, Wisconsin, Virginia, Delaware, Tennessee, Michigan, Kentucky, Nebraska, Indiana, Georgia, Idaho, Arizona, California, Montana, Colorado, South Dakota, Minnesota, North Dakota, and New York. Wheat stripe rust has been reported in Alberta, Ontario, Manitoba, and Saskatchewan provinces of Canada.
View the July 2017 Stripe Rust Update in pdf format.
WSU Small Grain’s Cereal Variety Testing Program field days are well underway. Recently, Ryan Higginbotham, Regional Extension Specialist for the Cereal Variety Testing program at WSU, and Michael Pumphrey, Endowed Chair and WSU Spring Wheat Breeder, were interviewed by Scott Yates, Director of Communications at the Washington Grain Commission at the Reardan Field Day, which was held June 28.
In episode 29 of the Wheat All About It! podcast, Plotting Wheat’s Way Forward, Higginbotham and Pumphrey discuss field day preparation and this summer’s weather as it relates to the possibility of incurring late maturity alpha amylase activity and falling numbers discounts.
Don’t forget to subscribe to all of the Wheat All About It! podcasts on iTunes. Search for Wheat All About It. A summary of the podcasts, including many highlighting WSU researchers is available at the Washington Grain Commission website.