Cormoran is a package mix of an insect growth regulator and a neonicotinoid insecticide. It has contact and ingestion activity. Use enough water to obtain good coverage when applied by air or ground. Don’t exceed 0.25-inch water with chemigation. A repeat application 7-14 days after the first may be needed to maintain control.
Don’t apply Cormoran or other neonicotinoid insecticides (Group 4A) if one was applied at planting or at hilling. Make only two consecutive applications of Cormoran to foliage before rotating to a different MOA. Pay attention to max use rates for both novaluron and acetamiprid products.
| Stage of Development: Emergence to Row Closure | ||||||
|---|---|---|---|---|---|---|
| Pest or Disease | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
| Aphid (various species) | 15, 4A | G | 9-12 fl oz | 12 h | 14 d | Apply when aphids are first detected. The novaluron in Cormoran is not very effective for aphids. |
| Armyworms, Cutworms, Loopers (various genera, Lepidoptera) | 15, 4A | E | 6-12 fl oz | 12 h | 14 d | Apply when caterpillars are small. |
| Colorado Potato Beetle (Leptinotarsa decemlineata) | 15, 4A | E | 6-12 fl oz | 12 h | 14 d | Apply at 50% eggs hatch when larvae are small. Don’t apply to successive generations of CPB. |
| Potato Psyllid (Bactericera cockerelli) | 15, 4A | G (n+a) | 12 fl oz | 12 h | 14 d | Apply when eggs are hatching/nymphs are present. It should control all life stages. |
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 |
| Aphid (various species) | 15, 4A | G | 9-12 fl oz | 12 h | 14 d | Apply when aphids are first detected. The novaluron in Cormoran is not very effective for aphids. |
| Armyworms, Cutworms, Loopers (various genera, Lepidoptera) | 15, 4A | E | 6-12 fl oz | 12 h | 14 d | Apply when caterpillars are small. |
| Colorado Potato Beetle (Leptinotarsa decemlineata) | 15, 4A | E | 6-12 fl oz | 12 h | 14 d | Apply at 50% eggs hatch when larvae are small. Don’t apply to successive generations of CPB. |
| Potato Psyllid (Bactericera cockerelli) | 15, 4A | G (n+a) | 12 fl oz | 12 h | 14 d | Apply when eggs are hatching/nymphs are present. It should control all life stages. |
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 |
| Aphid (various species) | 15, 4A | G | 9-12 fl oz | 12 h | 14 d | Apply when aphids are first detected. The novaluron in Cormoran is not very effective for aphids. |
| Colorado Potato Beetle (Leptinotarsa decemlineata) | 15, 4A | E | 6-12 fl oz | 12 h | 14 d | Apply at 50% eggs hatch when larvae are small. Don’t apply to successive generations of CPB. |
| Potato Psyllid (Bactericera cockerelli) | 15, 4A | G (n+a) | 12 fl oz | 12 h | 14 d | Apply when eggs are hatching/nymphs are present. It should control all life stages. |
| Tuberworm (Phthorimaea operculella) | 15, 4A | G-F | 6-12 fl oz | 12 h | 14 d | Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest. PHI is 14-days. |
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.
