 Treating internal seed infection is harder but can be done with other chemical or heat treatments.Infected fields are treated with multiple application approach involving spraying a mixture of copper and mancozeb, which prevents further infection and kills a variety of pathogens present at the time of spraying.Finally, there is some research being done into the foliar application of bacteriophages (viruses that infect bacteria) to control the disease but this approach has been met with some resistance and is not currently a widely used method.