Brigadier is a package mix of a pyrethroid and a neonicotinoid insecticide. It has contact and ingestion activity. It is toxic to many kinds of insects with a relatively long duration of impact from residues. Use an adjuvant to improve coverage for air or ground application. Chemigate using at least 0.5-inches of water. Pay attention to maximum use rates for both bifenthrin and imidacloprid products.
This and other pyrethroid insecticides (Group 3) should not be used mid-season because they kill predatory insects that help to keep aphids, psyllids, thrips, and spider mites in check.
Don’t apply Brigadier or other neonicotinoid insecticides (Group 4A) if one was applied at planting or at hilling. Make no more than two applications of Brigadier per season.
Usage for bifenthrin + imidacloprid on Potatoes
Emergence to Row Closure
| Target | Application per Acre | REI | PHI | MOA | Eff. | Notes |
|---|---|---|---|---|---|---|
| Aphid | 3.8-6.14 fl oz | 12 h | 21 d | 3, 4A | G | Apply before aphid populations build, but only if it’s before mid-June. |
| Armyworms, Cutworms, Loopers | 4.8-6.14 fl oz | 12 h | 21 d | 3, 4A | G | Apply when caterpillars are small, but only if it’s before mid-June. |
| Beet Leafhopper | 3.8-6.14 fl oz | 12 h | 21 d | 3, 4A | G | Apply in May and June to minimize spread of phytoplasma diseases (e.g., purple top) if BLH populations are building. |
| Colorado Potato Beetle | 4.8-6.14 fl oz | 12 h | 21 d | 3, 4A | G | Apply at 50% eggs hatch when larvae are small, but only if it’s before mid-June. |
| Lygus Bugs | 4.8-6.14 fl oz | 12 h | 21 d | 3, 4A | G | Apply when nymphs are present, but only if it’s before mid-June. |
| Potato Psyllid | 4.8-6.14 fl oz | 12 h | 21 d | 3, 4A | G (n+a) | Apply when adult psyllids are migrating into the field, but only if it’s before mid-June. It should also control nymphs. |
Tuber Bulking
| Target | Application per Acre | REI | PHI | MOA | Eff. | Notes |
|---|---|---|---|---|---|---|
| Aphid | 3.8-6.14 fl oz | 12 h | 21 d | 3, 4A | P | Use of pyrethroid insecticides is not recommended mid-season. If used, apply before aphid populations build. Monitor for subsequent pest outbreaks. |
| Armyworms, Cutworms, Loopers | 4.8-6.14 fl oz | 12 h | 21 d | 3, 4A | P | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when caterpillars are small. Monitor for subsequent pest outbreaks. |
| Colorado Potato Beetle | 4.8-6.14 fl oz | 12 h | 21 d | 3, 4A | P | Use of pyrethroid insecticides is not recommended mid-season. If used, apply at 50% eggs hatch when larvae are small. Monitor for subsequent pest outbreaks. |
| Lygus Bugs | 4.8-6.14 fl oz | 12 h | 21 d | 3, 4A | P | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when nymphs are present. Monitor for subsequent pest outbreaks. |
| Potato Psyllid | 4.8-6.14 fl oz | 12 h | 21 d | 3, 4A | P | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when adult psyllids are migrating into the field. It should also control nymphs. Monitor for subsequent pest outbreaks. |
Late Tuber Bulking to Harvest
| Target | Application per Acre | REI | PHI | MOA | Eff. | Notes |
|---|---|---|---|---|---|---|
| Aphid | 3.8-6.14 fl oz | 12 h | 21 d | 3, 4A | E | Apply before aphid populations build. |
| Colorado Potato Beetle | 4.8-6.14 fl oz | 12 h | 21 d | 3, 4A | E | Apply at 50% eggs hatch when larvae are small. |
| Potato Psyllid | 4.8-6.14 fl oz | 12 h | 21 d | 3, 4A | G (n+a) | Apply when adult psyllids are migrating into the field. It should also control nymphs. |
| Tuberworm | 4.8-6.14 fl oz | 12 h | 21 d | 3, 4A | G | Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest. PHI is 21-days. Minimum re-treatment interval is 7-days. |