Perennial Problems with Rhizome Johnsongrass

Daniel Stephenson from the LSU AgCenter called into the Crop Doctors’ Podcast studio in Stoneville to share his experiences with rhizome johnsongrass problems in Louisiana.  Multiple resistant johnsongrass has spread to different regions of Louisiana.  Most recently, populations of evolved resistance to the ACCase herbicides like clethodim. Rotating to corn or sequential treatments with glufosinate (Liberty 280, etc.) are the best options for managing this species currently.