Exirel has some contact activity but is most effective when ingested. Rapid anti-feeding activity. Insects typically die within 1-3 days of feeding. Soft on many beneficial predatory insects. It is translaminar and foliar systemic (moves to new leaves). For best results, use with an adjuvant (MSO). The spray solution should be pH 8 or less. Make only two consecutive applications of Group 28 insecticides (e.g., Exirel, Vantacor, Voliam Flexi) before rotating to an insecticide with a different MOA.
| Stage of Development: Emergence to Row Closure | ||||||
|---|---|---|---|---|---|---|
| Pest or Disease | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
| Aphid (various species) | 28 | G | 13.5-20.5 fl oz | 12 h | 7 d | Apply before aphid populations build. Rapid anti-feeding activity helps to limit spread of viruses, like Potato Virus Y, that spread quickly. |
| Armyworms, Cutworms, Loopers (various genera, Lepidoptera) | 28 | E | See Label | 12 h | 7 d | Apply when caterpillars are small. |
| Colorado Potato Beetle (Leptinotarsa decemlineata) | 28 | E | 5-15.5 fl oz | 12 h | 7 d | Apply at 50% egg hatch when larvae are small. Do not apply more than once via chemigation for CPBs. |
| Potato Psyllid (Bactericera cockerelli) | 28 | E (a) | 13.5-20.5 fl oz | 12 h | 7 d | Apply before psyllid populations build. Target the adult life stage. Rapid anti-feeding activity will also help to limit spread of zebra chip disease. |
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) | 28 | G | 13.5-20.5 fl oz | 12 h | 7 d | Apply before aphid populations build. Rapid anti-feeding activity helps to limit spread of viruses, like Potato Virus Y, that spread quickly. |
| Armyworms, Cutworms, Loopers (various genera, Lepidoptera) | 28 | E | See Label | 12 h | 7 d | Apply when caterpillars are small. |
| Colorado Potato Beetle (Leptinotarsa decemlineata) | 28 | E | 5-15.5 fl oz | 12 h | 7 d | Apply at 50% egg hatch when larvae are small. Do not apply more than once via chemigation for CPBs. |
| Potato Psyllid (Bactericera cockerelli) | 28 | E (a) | 13.5-20.5 fl oz | 12 h | 7 d | Apply before psyllid populations build. Target the adult life stage. Rapid anti-feeding activity will also help to limit spread of zebra chip disease. |
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) | 28 | G | 13.5-20.5 fl oz | 12 h | 7 d | Apply before aphid populations build. Rapid anti-feeding activity helps to limit spread of viruses, like Potato Virus Y, that spread quickly. |
| Colorado Potato Beetle (Leptinotarsa decemlineata) | 28 | E | 5-15.5 fl oz | 12 h | 7 d | Apply at 50% egg hatch when larvae are small. Do not apply more than once via chemigation for CPBs. |
| Potato Psyllid (Bactericera cockerelli) | 28 | E (a) | 13.5-20.5 fl oz | 12 h | 7 d | Apply before psyllid populations build. Target the adult life stage. Rapid anti-feeding activity will also help to limit spread of zebra chip disease. |
| Tuberworm (Phthorimaea operculella) | 28 | E | 7-13.5 fl oz | 12 h | 7 d | Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest. PHI is 7-days. For best results, chemigate in 0.1-to-0.2-acre inches of water and add MSO at 12 to 16 fl. oz per acre. Foliar sprays may not provide adequate control of larvae in the mid to lower canopy. |
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.
