Rapid blight and soil chemistry
May 19, 2008
By now, most superintendents managing turfgrass plagued by rapid blight are aware that high soil salinity and high soil sodium play a key role in rapid blight severity. However, we are not sure if everyone knows that potassium appears to play an important and positive role in suppressing or even preventing the disease. Potassium may directly impact Labyrinthula itself, prevent infection by Labyrinthula, prevent spread of the organism inside the plant, or potassium improve the plant's ability to resist the…