| Date | DDs | Event |
| 6-19-17 | 148 | 2 leaves present |
| 6-22-17 | 206 | 4-5 leaves present |
| 6-25-17 | 294 | 6-7 leaves present |
| 3-6-18 | 539 | First flowering |
| 5-12-18 | 1007 | Lower 95% CI first viable seed |
| 5-17-18 | 1082 | Average first viable seed |
| 5-23-18 | 1165 | Upper 95% CI first viable seed |
| 46 | F | corn growing |
| redroot pigweed model |