High plains disease

High Plains Disease is a viral disease that affects maize crops, primarily in the High Plains region of the United States. It is caused by a combination of two viruses, the Maize chlorotic mottle virus (MCMV) and the Wheat streak mosaic virus (WSMV). The disease was first identified in the 1980s and has since been a significant concern for maize growers in the region.

Symptoms

The symptoms of High Plains Disease include chlorosis, or yellowing, of the leaves, mottling, and streaking. The plants may also exhibit stunting and, in severe cases, may die prematurely. The symptoms are often more severe when the plant is infected early in its growth stage.

Transmission

High Plains Disease is transmitted by several species of aphids and by the wheat curl mite. The viruses can also be spread through the use of infected seed.

Management

Management of High Plains Disease involves the use of resistant maize varieties, control of the wheat curl mite and aphids, and crop rotation. The use of insecticides and miticides can also help to control the vectors of the disease.

Impact

High Plains Disease can cause significant yield losses in affected crops. The disease is a particular concern in the High Plains region, where maize is a major crop.

See also

• Maize chlorotic mottle virus
• Wheat streak mosaic virus
• Aphids
• Chlorosis

References

High plains disease Resources
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