Blackhawk has contact and ingestion activity. Translaminar, but not systemic. Expected residual activity is 4-7 days. An acidic spray solution will significantly shorten the residual activity, so adjust it to pH 6-9. Make only two consecutive applications of Group 5 insecticides (spinetoram and spinosad) before rotating to an insecticide with a different mode of action. Similar products with spinosad are available but use rates vary.
| Stage of Development: Emergence to Row Closure | ||||||
|---|---|---|---|---|---|---|
| Pest or Disease | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
| Armyworms, Cutworms, Loopers (various genera, Lepidoptera) | 5 | G | 2.25-3.5 oz | 4 h | 7 d | Apply when larvae are small. The lower rate of 2.25 oz. per acre may be used for small larvae, and 3 to 3.5 oz. per acre should be used for larger larvae, but the largest larval stages may not be controlled at any rate. |
| Colorado Potato Beetle (Leptinotarsa decemlineata) | 5 | G | 1.7-3.3 oz | 4 h | 7 d | Apply when about 50% of the eggs have hatched and most larvae are small. Do not apply to consecutive generations of CPB. |
| Potato Psyllid (Bactericera cockerelli) | 5 | G (n) | See Label | 4 h | 7 d | Psyllids are not on the label, but applications targeting other pests may control psyllid nymphs. No adult activity. Translaminar, so it should get to the nymphs on the underside of leaves. |
| Thrips (Thripidae) | 5 | E | 2.25-3.5 oz | 4 h | 7 d | An adjuvant added to spray solution may improve thrips control. |
1Mode of action. NC = not classified..
2 Efficacy ratings denote the relative ability of a pesticide to control its target. The ratings are E = excellent, G = good, F = fair/suppression; P = poor, and ND = no data. Efficacy ratings are based on the inherent toxicity of the pesticide against its target, the likelihood that the target will contact or ingest the product as applied, duration of impact on the target, and undesired effects, such as negative impacts on natural enemies that could lead to future pest outbreaks.
3 Rate per acre per application. Refer to the product label for maximum use rate per season.
4 Reentry interval.
5The minimum pre-harvest interval. Some products do not list PHI.
Note: always read and follow the directions on the pesticide label.
| Stage of Development: Tuber Bulking | ||||||
|---|---|---|---|---|---|---|
| Pest or Disease | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
| Armyworms, Cutworms, Loopers (various genera, Lepidoptera) | 5 | G | 2.25-3.5 oz | 4 h | 7 d | Apply when larvae are small. The lower rate of 2.25 oz. per acre may be used for small larvae, and 3 to 3.5 oz. per acre should be used for larger larvae, but the largest larval stages may not be controlled at any rate. |
| Colorado Potato Beetle (Leptinotarsa decemlineata) | 5 | G | 1.7-3.3 oz | 4 h | 7 d | Apply when about 50% of the eggs have hatched and most larvae are small. Do not apply to consecutive generations of CPB. |
| Potato Psyllid (Bactericera cockerelli) | 5 | G (n) | See Label | 4 h | 7 d | Psyllids are not on the label, but applications targeting other pests may control psyllid nymphs. No adult activity. Translaminar, so it should get to the nymphs on the underside of leaves. |
| Thrips (Thripidae) | 5 | E | 2.25-3.5 oz | 4 h | 7 d | An adjuvant added to spray solution may improve thrips control. |
1Mode of action. NC = not classified..
2 Efficacy ratings denote the relative ability of a pesticide to control its target. The ratings are E = excellent, G = good, F = fair/suppression; P = poor, and ND = no data. Efficacy ratings are based on the inherent toxicity of the pesticide against its target, the likelihood that the target will contact or ingest the product as applied, duration of impact on the target, and undesired effects, such as negative impacts on natural enemies that could lead to future pest outbreaks.
3 Rate per acre per application. Refer to the product label for maximum use rate per season.
4 Reentry interval.
5The minimum pre-harvest interval. Some products do not list PHI.
Note: always read and follow the directions on the pesticide label.
| Stage of Development: Late Tuber Bulking to Harvest | ||||||
|---|---|---|---|---|---|---|
| Pest or Disease | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
| Colorado Potato Beetle (Leptinotarsa decemlineata) | 5 | G | 1.7-3.3 oz | 4 h | 7 d | Apply when about 50% of the eggs have hatched and most larvae are small. Do not apply to consecutive generations of CPB. |
| Potato Psyllid (Bactericera cockerelli) | 5 | G (n) | See Label | 4 h | 7 d | Psyllids are not on the label, but applications targeting other pests may control psyllid nymphs. No adult activity. Translaminar, so it should get to the nymphs on the underside of leaves. |
1Mode of action. NC = not classified..
2 Efficacy ratings denote the relative ability of a pesticide to control its target. The ratings are E = excellent, G = good, F = fair/suppression; P = poor, and ND = no data. Efficacy ratings are based on the inherent toxicity of the pesticide against its target, the likelihood that the target will contact or ingest the product as applied, duration of impact on the target, and undesired effects, such as negative impacts on natural enemies that could lead to future pest outbreaks.
3 Rate per acre per application. Refer to the product label for maximum use rate per season.
4 Reentry interval.
5The minimum pre-harvest interval. Some products do not list PHI.
Note: always read and follow the directions on the pesticide label.
