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Integrated Pest Management Survey – Small Grain Disease Report (06/14/18)

The NDSU IPM scouts visited 317 wheat and 21 barley fields during May 28 to June 8.

Integrated Pest Management Survey – Small Grain Disease Report

The NDSU IPM scouts visited 317 wheat and 21 barley fields during May 28 to June 8. Collectively, foliar diseases were detected in only 9 fields (less than 3% of the fields). This matches similar reports from agricultural professionals indicating disease has been low this year. Most questions at this point have revolved around atypical looking lesions (Figure 1) that likely are attributed to physiological responses from abiotic stressors (ie: temperature fluctuations, wind, etc). The recent rain events across much of the state will increase the risk for residue-borne fungal leaf spots, especially fields in no-till with a short rotation away from wheat.

Stripe rust and leaf rust of wheat have not been found in North Dakota and reports of rust in the Great Plains is also low. These observations are vastly different from what was observed over the past three growing seasons when stripe rust was reported early (mid to late May) in the growing season.

As always, continue to keep scouting fields! The NDSU IPM Survey is supported by the Crop Protection and Pest Management Program [grant no. 2017-70006-27144 / accession 1013592] from the USDA National Institute of Food and Agriculture.

 friskop

Andrew Friskop

Extension Plant Pathology, Cereal Crops

This site is supported in part by the Crop Protection and Pest Management Program [grant no. 2017-70006-27144/accession 1013592] from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed are those of the website author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

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