2017 Stripe Rust Ratings From Eastern Nebraska Wheat Variety Trials

Jul 18, 2017

By Stephen Wegulo - Extension Plant Pathologist

2017 Stripe Rust Ratings From Eastern Nebraska Wheat Variety Trials

Figure 1. A stripe rust susceptible (left) and resistant variety in a state variety trial in southeast Nebraska on June 3.

In 2017, stripe rust (Figure 2) was one of two major diseases that affected wheat in Nebraska. The other disease was the wheat streak mosaic/Triticum mosaic/High Plains Virus complex.

Figure 2. Stripe rust in a growers field in south central Nebraska on June 7.

In eastern Nebraska stripe rust onset was earlier than in western Nebraska, allowing it to develop to levels that allowed scoring of varieties and lines in state variety trials in Washington, Saunders, and Clay counties. Some varieties/lines showed very good resistance whereas others were highly susceptible (Figure 1).

Table I shows the scores on a scale of 1 = Resistant to 9 = Susceptible.

Source: unl.edu

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