You can spray Paramount for grasses post emerge. Be sure to use MSO and a 1/2# of atrazine with it. For broadleaves you will have to make a second pass, use some generic buctril or Aim or Priority(Aim+Permit) for broadleaves. The Aim will turn the sorghum white, but it will grow out of it. Huskie is also labled for Sorghum now.