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Johnsongrass (Sorghum halepense) may reach a height of 31/2 feet and competes heavily with trees for nutrients and water. It reproduces by seed and perennial rhizomes, making it difficult to control.

Johnsongrass (Evans, IL Wildlife Action Plan,

(Photo: Chris Evans, Illinois Wildlife Action Plan,



  • Pre-emergence herbicides applied persistently and repeatedly after germination
  • Herbicides selective for grasses can also be applied


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