Panama disease sexual reproduction. This causes all bananas of a single breed to be nearly genetically identical. The fungus easily spreads from plant to plant because the individual plants' defenses are nearly identical. The disease is dispersed by spores or infected material that travel in surface water. One of the biggest issues in spreading the disease is the means by which new banana plants are planted. Suckers are taken from one plant and clonally propagated to grow new trees. About 30 to 40% of suckers from a diseased plant are infected and not all show symptoms, so the chance of growing a
High plains disease for the wheat curl mite. High plains disease also may occur on barley, oats and rye, and on drooping brome "Bromus tectorum" and yellow foxtail "Setaria pumila" grasses. An ELISA test is available to detect high plains disease. Infection can be avoided by elimination of volunteer crop and wild host plants prior to planting. Resistant varieties of maize exist. High plains disease High plains disease is a viral disease afflicting wheat and maize. It is caused by the negative-sense ssRNA virus wheat mosaic virus. Symptoms are similar to wheat streak mosaic virus, with leaf veins showing yellow flecks and streaks,