Table 5.
Combined mortality of waterhemp progenies following herbicide drift exposure in a wind tunnel studya.
| Population | Progeny | Nozzle | Herbicide drift | ||
|---|---|---|---|---|---|
| glyphosate | 2,4-D | dicamba | |||
| Mortality (%) | |||||
| Thayer | P0 | air inclusion | 31.3 | 21.3 | 15 |
| flat fan | 50 | 57.5 | 50 | ||
| P1 | air inclusion | 28.8 | 33.8 | 2.5 | |
| flat fan | 27.5 | 82.5 | 48.75 | ||
| Stanton | P0 | air inclusion | 8.75 | 7.5 | 3.75 |
| flat fan | 30 | 80 | 26.25 | ||
| P1 | air inclusion | 15 | 25 | 8.75 | |
| flat fan | 39 | 86.25 | 55 | ||
aTotal of 80 plants per population*progeny*nozzle*herbicide*, with 20 plants per distance (1.0, 1.5, 2.0, and 2.5 m from the nozzle).