Goss's Wilt

Ranger alfalfa plants

Additional Gram-positive Bacterial Diseases in Nebraska Crop Production

May 11, 2021

Over the last few months, I have been relating the stories of a group of plant pathogenic bacteria known as “Gram positive,” which refers to the reaction of bacterial cell walls to microscopic dyes that divides bacteria into two primary groups: negative and positive. This was originally developed by Danish bacteriologist Hans C. Gram.

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A comparison of the bacteria that cause bacterial wilt of dry beans and Goss’ wilt of corn. The rods of Curtobacterium (left) in the dry bean wilt pathogen are shorter and fatter than the Goss’ wilt pathogen, Clavibacter (right).
Figure 1. A comparison of the bacteria that cause bacterial wilt of dry beans and Goss’ wilt of corn. The rods of Curtobacterium (left) in the dry bean wilt pathogen are shorter and fatter than the Goss’ wilt pathogen, Clavibacter (right).

Puzzling Out Two Closely Related Corn, Dry Bean Diseases

October 24, 2019
Two closely related plant diseases — one in corn and the other in dry bean — have followed similar, but somewhat perplexing patterns of appearing, disappearing, and then resurging as a serious threat to crop yield. A UNL researcher looks at factors affecting the cycle and whether it can be predicted.

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