What causes Goss wilt in corn?

Goss’s wilt is caused by the bacterial pathogen named Clavibacter michiganensis subspecies nebraskensis. It overwinters in infested corn debris near the soil surface. The pathogen can possibly be seed transmitted at very low levels.

What is Goss wilt?

Goss’s wilt is caused by the bacteria Clavibacter michiganensis subsp. nebraskensis, which can infect leaves at any stage of plant growth. Leaf lesions are long, gray-green to black, water-soaked, and have wavy edges. Streaks resembling freckles within the lesions are a distinctive symptom of this disease.

How do you stop Stewart’s wilt?

Throughout North America, Stewart’s wilt is controlled effectively by planting resistant corn hybrids. Resistance restricts the movement of Erwinia stewartii in the vascular system of plants and prevents plants from becoming infected systemically.

What causes Stewarts wilt?

Stewart’s wilt is caused by the bacterial pathogen Pantoea stewarfii subsp. stewarfii (syn. Erwinia stewarfii). This bacterium overwinters within the body of the corn flea beetle (Chaetocnema pulicaria, Figure 5), which is the primary vector (transmitter) of Stewart’s wilt.

Where can you find Goss’s wilt on corn?

Figure 1. The leaf blight phase of Goss’s wilt can cause signi- ficant loss of functional leaf area in corn fields. Until recently, significant Goss’s wilt damage was largely confined to corn fields in Nebraska and parts of Colorado, Kansas and South Dakota.

How did Goss’s wilt spread to the Great Plains?

 Goss’s wilt, a bacterial disease of corn historically confined to the Great Plains, has now spread to several states in the Midwest. The disease survives primarily in corn residue.  The Goss’s wilt pathogen enters the corn plant through wounds from rain, wind and hail.

What kind of disease does Goss’s Wilt cause?

Goss’s wilt (Clavibacter michiganensissubsp. nebraskensis) is a bacterial disease that may cause systemic infection and wilting of corn plants, as well as severe leaf blighting. The leaf blight phase is generally more prevalent and more damaging to the corn crop (Figure 1). Figure 1.

Is there any way to stop Goss’s Wilt?

Leaf loss may lead to reduced stalk quality and yield, with grain losses ranging from minimal to near 50%.  No rescue measures are available to control Goss’s wilt, as fungicides are ineffective against this bacterial disease.