Figure 1 (left). Small, dark discontinuous water-soaked spots or "freckles" often develop near the edges of lesions caused by Goss's wilt and blight.
Figure 2 (right). Bacterial exudate on the surface of leaves infected with Goss's wilt often will appear shiny.

July 3, 2013

June 21st – July 2nd

Goss’s bacterial wilt and leaf blight continues to show up in samples from central and southeast Nebraska. The majority of the samples received in the Plant and Pest Diagnostic Clinic were affected only by the leaf blight phase of the disease. Only one sample was confirmed to have the systemic wilt phase of the disease.

Reports

The following diseases were reported in samples submitted to the PPDC.

Corn
South Central District — Goss’s bacterial wilt and leaf blight
Southeast District — Goss’s bacterial wilt and leaf blight
East Central District — Goss’s bacterial wilt and leaf blight
East Central District — Pythium damping off
East Central District — Rapid corn syndrome

Soybean
Central District – Fusarium damping off
South Central District – Fusarium damping off
East Central District — Fusarium damping off
Northeast District — Fusarium damping off
Southeast District — Pythium damping off

Wheat
East Central District — leaf rust
East Central District — tan spot
East Central District — Fusarium root rot