Plant and Pest Diagnostic Clinic Update

May 28 – June 4

The following diseases were identified in samples submitted to the UNL Plant and Pest Diagnostic Clinic (PPDC).  Cool and wet conditions, along with sporadic storm events that contained hail, have led to the development of bacterial wilt diseases in corn as well as leaf anthracnose.  Both of the pathogens responsible for these diseases typically prefer temperatures ~80° F and are not seen until later in the season.  However, the unfavorable environmental conditions have led to plant stress which has weakened the crop and allowed for infection.

Corn
East Central District — Leaf anthracnose, Pythium root and crown rot, Goss's wilt
Central District — Leaf anthracnose, Pythium root and crown rot
(Further corn disease information)

Soybean
East Central District — Pythium root and crown rot
(Further soybean disease information)

Wheat
Central District – Stripe rust
South Central District – Stripe rust
(Further wheat disease information)