Reemergence of Goss's Wilt and Blight of Corn to the Central High Plains

Abstract

Goss's bacterial wilt and blight, also known as leaf freckles and wilt was first identified in Dawson Co. in south central Nebraska in 1969. The disease was soon identified in 54 Nebraska counties and six bordering states. Widespread development of symptoms in NE, WY, and CO early in the 2006 growing season led to submission of more than 50 samples to the UNL Panhandle Research and Extension Center's Plant Disease Diagnostic Clinic in Scottsbluff, NE for analysis. Pathogen identification was made based on a combination of test results. Accepted for publication 5 April 2007. Published 19 September 2007.

Mapping Quantitative Trait Loci for Resistance to Goss's Bacterial Wilt and Leaf Blight in North American Maize by Joint Linkage Analysis

“…This is likely to point toward the difficulty of establishing good artificial infection and the fact that the V6 (later) growth stage was targeted in the inoculation method used in this study. Infection at earlier growth stages through wounding of plants through hail and winds has been reported to cause severe Goss's wilt symptoms and yield losses (Jackson et al, 2007b). The inbred line B73 was found to be resistant compared to Oh43 and HP301.…”

Compensation of Corn Yield Components to Late‐Season Stand Reductions in the Central and Northern Great Plains

“…Intact plants typically suff er bruising to the stalks and have exposed plant tissues. Th is provides a condition favorable to entry of pathogens (Jackson et al, 2007;Bradley and Ames, 2010), which can reduce grain yield during the kernel set and grainfi ll periods, or can result in substantial yield losses due to reductions in harvestability. Hail damage can also change crop-weed dynamics and result in ancillary issues such as increased competition from various weed species (Currie and Klocke, 2008).…”

Four Common Setaria Species are Alternative Hosts for Clavibacter michiganensis subsp. nebraskensis, Causal Agent of Goss's Bacterial Wilt and Blight of Corn

“…nebraskensis, Cmn) (18) was first reported in three Zea mays L. (corn) fields in Dawson County, Nebraska in 1969 (20). The disease Cmn has since been confirmed in eleven states including Nebraska, Colorado, Kansas, Iowa, Wyoming, Wisconsin, South Dakota, Minnesota, Illinois, Indiana, and Texas (5,7,9,11,12,13). The inoculum Cmn overwinters in infected plant residue from the previous season(s), as well as inside and on seed (13).…”