
No. 6/May 1, 1998
Tables 9 to 15 (Efficacy of corn herbicides)
Table 9. Efficacy of corn herbicides: Pigweed--waterhemp | I A | I L | I N | K S | K Y | M I | M O | M N | N B | O H | P A | W S | A v g | Soil-applied | Atrazine | E | 9 | 9 | G | 9 | G | 10 - 10 | G | 10 - 10 | 9 | 9+ | G E | 9 | Princep | - | 9 | 9 | - | 9 | G | 10 | - | - | 9 | 9+ | - | 9 | Python | E | 9 | 9 | G | 9 | E | - | G | 9 - 9 | 9 | 9 | G | 9 | Hornet | - | 9 | 9 | G | 9 | E | - | G | 9 - 9 | 9 | 9 | - | 9 | | | | | | | | | | | | | | | Postemergence | Atrazine | E | 9 | 9 | E | 9 | E | 10 - 10 | G | 9 - 9 | 9 | 10 | E | 9 | Buctril | G | 7 | 7 | F | 7 | F | 7 - 6 | F G | 6 - 6 | 7 | 7 | G | 7 | Buctril + Atrazine | - | 9 | - | E | - | G | - | - | 9 - 9 | 9 | 9 | G E | 9 | Laddok S-12 | - | 8 | - | G | - | G | - | - | 8 - 8 | 9 | 9 | G | 8+ | | | | | | | | | | | | | | | Liberty | G | 8 | 8 | E | 8 | G | 7 - 6 | G | 7 - 6 | 8 | 8 | G | 8 | Tough | - | 9 | - | - | - | - | 9 - 8 | G | - | - | 9 | G | 9 | Banvel/ Clarity | G E | 9 | 9 | G E | 9 | G | 9 - 8 | G | 8 - 7 | 9 | 9 | G E | 9 | Marksman | - | 9 | - | E | 9 | E | - | - | 9 - 9 | 9 | 10 | E | 9 | 2,4-D | G | 9 | 9 | E | 9 | G | 9 - 8 | G | 7 - 8 | 9 | 9 | G E | 9 | | | | | | | | | | | | | | | Stinger | - | 4 | 0 | - | - | P | - | P | - | 0 | 6 | N | 2 | Accent | G E | 8 | 8 | - | 8 | E | 8 - 5 | G | 7 - 7 | 9 | 9 | G | 8 | Beacon | E | 8 | 7 | G | 8 | E | 8 - 5 | G | 8 - 8 | 9 | 9 | G | 8 | Exceed | E | 9 | 9 | G | 9 | - | - | G | 9 - 8 | 9 | 9 | G | 9 | Lightning | - | 9 | 9 | E | 9 | E | - | G | 9 - 6 | 9 | 9+ | E | 9 | | | | | | | | | | | | | | Permit | E | 9 | 9 | - | 9 | E | 9 - 5 | F G | 9 - 8 | 9 | 9 | G | 9 | Hornet | E | 8 | 3 | F | 9 | P | - | F G | 7 - 6 | 7+ | 9 | F | 8 | Resolve | - | 9 | 9 | E | 9 | - | - | - | 9 - 9 | 9 | - | E | 9 | Scorpion III | E | 9 | 9 | G E | - | G | - | G | 9 - 9 | 9 | 9 | G E | 9 |
Table 10. Efficacy of corn Herbicides: Common ragweed | I A | I L | I N | K S | K Y | M I | M O | M N | N B | O H | P A | W S | A v g | Soil-applied | Atrazine | E | 9 | 9 | G | 9 | E | 9 | G | 9 | 9 | 10 | G | 9 | Princep | - | 9 | 9 | - | 9 | E | 9 | - | - | 9 | 9+ | - | 9 | Python | P | 8 | 8 | G | 9 | F | - | F G | 7 | 7 | 8 | F G | 8 | Hornet | - | 8 | 8 | G | 8 | E | - | G | 7 | 8+ | 8+ | G E | 8 | | | | | | | | | | | | | | | Postemergence | Atrazine | E | 9 | 9 | E | 9 | G | 9 | G | 9 | 9 | 9 | E | 9 | Buctril | E | 9 | 9 | G | 9 | G | 9 | G | 9 | 9 | 7+ | G E | 9 | Buctril + Atrazine | - | 9 | - | E | 9 | E | - | - | 9 | 9 | 9 | E | 9 | Laddok S-12 | - | 9 | - | G E | - | E | - | - | 9 | 9 | 9 | G E | 9 | | | | | | | | | | | | | | | Liberty | E | 9 | 9 | G | 9 | E | 8 | G | 9 | 9 | 9 | G E | 9 | Tough | - | 6 | - | - | - | - | 6 | P | 9 | - | 7 | F | 6 | Banvel/ Clarity | G E | 9 | 9 | G | 9 | G | 10 | G | 8 | 9 | 9 | G | 9 | Marksman | - | 9 | - | E | - | E | - | - | 9 | 9 | 9+ | E | 9 | 2,4-D | G | 9 | 9 | E | 9 | G | 9 | G | 7 | 9 | 9 | G | 9 | | | | | | | | | | | | | | | Stinger | - | 9 | 9 | - | - | G | - | G | - | 9 | 9+ | G | 9 | Accent | P | 4 | 5 | - | 2 | P | 2 | P | 1 | 0 | 6 | P | 4 | Beacon | G | 9 | 9 | E | 9 | E | 8 | G | 9 | 9 | 9 | G | 9 | Exceed | G E | 9 | 9 | E | 9 | - | - | - | 9 | 9 | 9 | G E | 9 | Lightning | - | 7 | 7 | G E | 7 | F | - | G | 7 | 7 | 7 | E | 7 | | | | | | | | | | | | | | | Permit | G E | 8 | 8 | - | 8 | G | 8 | G | 9 | 8 | 9 | G E | 8 | Hornet | G E | 8 | 8 | E | 8 | E | - | G | 8 | 9 | 9 | G | 8 | Resolve | - | 8 | 8 | G | 8 | - | - | - | 8 | 9 | - | G E | 8 | Scorpion III | G E | 9 | 9 | E | - | G | - | G | 8 | 9 | 9 | G | 9 |
Table 11. Efficacy of corn herbicides: Giant ragweed
| IL | IN | KY | MI | MO | OH | PA | WS | Avg | Soil-applied | Atrazine | 8 | 8 | 8 | G | 8 | 8 | 8 | FG | 8 | Princep | 8 | 9 | 7 | F | 7 | 7 | 7 | - | 7 | Python | 4 | 5 | 7 | F | - | 5 | N | P | 5 | Hornet | 7 | 6 | 6 | G | - | 7+ | 8 | F | 7 | | | | | | | | | | | Postemergence | Atrazine | 8 | 8 | 8 | G | 8 | 8 | 8 | EG | 8 | Buctril | 8 | 7 | 8 | G | 9 | 8 | 8 | F | 8 | Buctril + Atrazine | 9 | - | 8 | E | - | 9 | 9 | GE | 9 | Laddok S-12 | 8 | - | - | G | - | 9 | 8+ | G | 8 | | | | | | | | | | | Liberty | 8 | 9 | 8 | G | 8 | 8+ | 8+ | G | 8+ | Tough | 6 | - | - | - | 7 | - | 7 | F | 7 | Banvel/ Clarity | 9 | 9 | 8 | E | 9 | 9 | 9 | G | 9 | Marksman | 9 | - | - | E | - | 9 | 9 | GE | 9 | 2,4-D | 9 | 9 | 9 | G | 8 | 9 | 9 | G | 8+ | | | | | | | | | | | Stinger | 9 | 9 | - | E | - | 9 | 9 | G | 9 | Accent | 2 | 5 | 2 | N | 2 | 0 | N | P | 2 | Beacon | 9 | 9 | 9 | E | 8 | 9 | 9 | G | 9 | Exceed | 9 | 9 | 9 | - | - | 9 | 8+ | G | 9 | Lightning | 7 | 7 | 8 | F | - | 8 | 6 | GE | 7 | | | | | | | | | | | Permit | 8 | 8 | 7 | G | 8 | 8 | 8 | F | 8 | Hornet | 8 | 7 | 7 | E | - | 9 | 9 | G | 8 | Resolve | 8 | 8 | 8 | - | - | 9 | - | G | 8 | Scorpion III | 8 | 9 | - | G | - | 8 | 9 | G | 8 |
Table 12. Efficacy of corn herbicides: Prickly sida
| IL | KY | MO | Avg | Soil-applied | Atrazine | 9 | 9 | 9 | 9 | Princep | 9 | 9 | 9 | 9 | Python | 7 | 7 | - | 7 | Hornet | 7 | 7 | - | 7 | | | | | | Postemergence | Atrazine | 8 | 9 | 9 | 8+ | Buctril | 4 | 4 | 4 | 4 | Buctril + Atrazine | 9 | - | - | - | Laddok S-12 | 8 | - | - | - | | | | | | Liberty | 7 | - | 7 | 7 | Tough | 6 | - | 5 | 5+ | Banvel/ Clarity | 8 | 8 | 8 | 8 | Marksman | 9 | 9 | - | 9 | 2,4-D | 8 | 8 | 8 | 8 | | | | | | Stinger | 0 | - | - | - | Accent | 3 | 2 | 2 | 2+ | Beacon | 7 | 7 | 6 | 7 | Exceed | 8 | 8 | - | 8 | Lightning | 8 | - | - | - | | | | | | Permit | 7 | 7 | 6 | 7 | Hornet | 7 | - | - | - | Resolve | 8 | 8 | - | 8 | Scorpion III | 8 | - | - | - |
Table 13. Efficacy of corn herbicides: Smartweed | IA | IL | IN | KY | MI | MO | M N | NB | OH | PA | WS | A v g | Soil-applied | Atrazine | E | 9 | 9 | 9 | G | 9 | G | 9 | 9 | 9+ | E | 9 | Princep | - | 9 | 9 | 9 | G | 9 | G | - | - | - | - | 9 | Python | GE | 8 | 9 | 8 | G | - | G | 8 | 8 | 8+ | G | 8 | Hornet | - | 8 | 9 | 8 | G | - | - | 8 | 8+ | 8+ | - | 8+ | | | | | | | | | | Postemergence | Atrazine | E | 9 | 9 | 9 | G | 9 | G | 9 | 9 | 10 | E | 9 | Buctril | GE | 9 | 9 | 9 | G | 9 | G | 9 | 8 | 9 | GE | 9 | Buctril +Atrazine | - | 9 | - | - | G | - | - | 9 | 9 | 10 | E | 9 | Laddok S-12 | - | 9 | - | - | G | - | - | 9 | 9 | 9 | E | 9 | | | | | | | | | | | | | | Liberty | GE | 8 | 9 | 9 | G | - | G | 9 | 8+ | 8+ | GE | 8+ | Tough | - | 5 | - | - | - | 6 | P | - | - | 7 | P | 6 | Banvel /Clarity | E | 9 | 9 | 9 | E | 9 | G | 9 | 9 | 10 | E | 9 | Marksman | - | 9 | - | 9 | E | - | - | 9 | 9 | 10 | E | 9 | 2,4-D | F | 6 | 7 | 7 | P | 7 | P | 4 | 6 | 7 | P | 6 | | | | | | | | | | | | | | Stinger | - | 7 | 7 | - | F | - | FG | - | 5 | 7 | F | 6+ | Accent | G | 7 | 8 | 6 | G | 8 | G | 7 | 8 | 8 | G | 7+ | Beacon | G | 8 | 7 | 6 | G | 8 | G | 8 | 8 | 8 | G | 8 | Exceed | GE | 9 | 9 | 9 | G | - | G | 8 | 9 | 9 | G | 9 | Lightning | - | 9 | 9 | 9 | G | - | G | 8 | 9 | 8+ | G | 9 | | | | | | | | | | | | | | Permit | GE | 7 | 7 | 7 | F | 8 | FG | 7 | 7 | 8 | FG | 7+ | Hornet | GE | 8 | 8 | 9 | G | - | G | 8 | 9 | 8 | G | 8+ | Resolve | - | 9 | 9 | 8 | - | - | - | 9 | 9 | - | E | 9 | Scorpion III | GE | 9 | 9 | - | G | - | G | 9 | 9 | 9 | G | 9 |
Table 14. Efficacy of corn herbicides: Sunflower, wild | IA | IL | KS | MO | MN | NB | ND | SD | Avg | Soil-applied | Atrazine | G | 8 | F | 7 | F | 7 | G | G | 7+ | Princep | - | 8 | - | 7 | - | - | - | - | 7+ | Python | FG | 8 | G | - | G | 7 | P | F | 7+ | Hornet | - | 9 | E | - | G | 7 | E | - | 8 | | | | | | | | | | | Postemergence | Atrazine | E | 9 | E | 9 | G | 8 | G | E | 9 | Buctril | E | 9 | E | 8 | G | 9 | GE | E | 9 | Buctril + Atrazine | - | 9 | E | - | - | 9 | - | - | 9 | Laddok S-12 | - | 9 | E | - | - | 9 | - | - | 9 | | | | | | | | | | | Liberty | E | 9 | E | 8 | G | 9 | E | G+ | 9 | Tough | - | 8 | - | 6 | G | - | FG | G | 7 | Banvel/ Clarity | G | 8 | G | 9 | G | 7 | GE | G+ | 8 | Marksman | - | 9 | E | - | - | 9 | - | - | 9 | 2,4-D | G | 8 | E | 9 | F | 7 | E | G+ | 8 | | | | | | | | | | | Stinger | - | 8 | - | - | G | - | GE | - | 8 | Accent | P | 4 | - | 5 | - | 2 | P | P | 4 | Beacon | G | 9 | GE | 8 | G | 9 | - | E | 9 | Exceed | E | 8 | E | - | G | 9 | - | E | 9 | Lightning | - | 9 | E | - | G | 8 | G | E | 8+ | | | | | | | | | | | Permit | E | 9 | - | 9 | G | 9 | E | E | 9 | Hornet | GE | 9 | E | - | G | 9 | E | E | 9 | Resolve | - | 8 | E | - | - | 8 | - | - | 8 | Scorpion III | GE | 9 | E | - | G | 9 | E | E | 9 |
Table 15. Efficacy of corn herbicides: Velvetleaf
| I A | I L | I N | K S | K Y | M I | M O | M N | N B | O H | P A | W S | A v g | Soil-applied | Atrazine | E | 7 | 8 | F | 8 | F | 7 | F | 7 | 8 | 8+ | F | 7+ | Princep | - | 7 | 7 | - | 8 | F | 8 | - | - | - | 8 | - | 7+ | Python | E | 8 | 8 | E | 7 | G | - | G | 7 | 8+ | 8+ | G | 8 | Hornet | - | 8 | 8 | E | 7 | G | - | G | 7 | 9 | 9 | - | 8 | | | | | | | | | | | | | | | Postemergence | Atrazine | E | 8 | 8 | G | 8 | F | 8 | F | 8 | 8 | 8 | G E | 8 | Buctril | G | 8 | 8 | F G | 8 | G | 8 | G | 7 | 8 | 8+ | G | 8 | Buctril +Atrazine | - | 9 | - | E | - | G | - | - | 8 | 9 | 9 | G E | 9 | Laddok S-12 | - | 9 | - | E | - | G | - | - | 9 | 9 | 9 | G E | 9 | | | | | | | | | | | | | | | Liberty | E | 8 | 8 | G | 7 | F | 7 | G | 8 | 7+ | 8 | G | 8 | Tough | - | 6 | - | - | - | - | 6 | P | - | - | 6 | F | 6 | Banvel/ Clarity | F G | 8 | 9 | G | 8 | F | 8 | G | 4 | 7+ | 8 | G | 8 | Marksman | - | 8 | - | G E | 8 | G | - | - | 8 | 9 | 9 | G E | 8+ | 2,4-D | G | 8 | 8 | G | 8 | F | 8 | G | 8 | 8 | 8 | G | 8 | | | | | | | | | | | | | | | Stinger | - | 3 | 0 | - | - | P | - | P | - | 0 | 6 | P | 3 | Accent | F | 5 | 6 | - | 5 | F | 3 | P | 4 | 5 | 7 | F | 5 | Beacon | F G | 7 | 7 | F G | 7 | G | 6 | F | 7 | 8 | 8 | G E | 7 | Exceed | E | 9 | 9 | E | 8 | - | - | G | 8 | 9 | 9 | GE | 9 | Lightning | - | 9 | 9 | G | 9 | F | - | G | 8 | 9 | 8+ | G E | 9 | | | | | | | | | | | | | | | Permit | E | 9 | 8 | - | 8 | G | 8 | G | 9 | 8 | 9 | E | 8+ | Hornet | G E | 8 | 8 | E | 8 | G | - | G | 8 | 8+ | 8+ | G E | 8+ | Resolve | - | 8 | 8 | E | 8 | - | - | - | 8 | 9 | - | G E | 8 | Scorpion III | G E | 8 | 8 | G E | - | G | - | G | 8 | 8 | 9 | G E | 8 |
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