Field was sprayed right after planting with 1 quart/acre of Atrazine as a pre-emergence herbicide. After sweet sorghum grew to 2 inches, 1 quart/acre of Atrazine and 1 quart/acre of Dual were applied. However, frequent rain until mid-May in Franklinton caused heavy weed pressure from crab grass, nutsedge and Johnson grass.
| | Photo 1. Crab grass is a dominant weed. In addition to that, warm-season perennial (Johnson grass) and nutsedge also grew between the rows. |
| | Photo 2. A rotary tiller was used to control weeds between rows. |
| | | Photo 3. Rows after tilling. |
| | Photo 4. Plant height reached more than 30 inches (May 28). |
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