Asana XL has contact and ingestion activity. It is toxic to many kinds of insects with a relatively long duration of impact from residues. 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. Asana XL is not systemic or translaminar, but residues generally persist for 7-14 days. It may need to be re-applied to cover new foliage. Use high water volumes with ground or aerial applications to ensure the product is well distributed in the foliage. Make only two consecutive applications before rotating to an insecticide with a different MOA. Similar products (other brands) with esfenvalerate are available but use rates vary.
Restricted
Material Type:
Insecticides and Repellents
Chemical Classification:
Pyrethroid
Signal Word:
Warning
Formulation:
Liquid
EPA Number:
59639-209
Usage for esfenvalerate on Potatoes
Max Application per Season: 67.2fl oz
Emergence to Row Closure
| Target | Application per Acre | REI | PHI | MOA | Eff. | Notes |
|---|---|---|---|---|---|---|
| Aphid | 5.8-9.6 fl oz | 12 h | 7 d | 3 | F-P | Apply before aphid populations start to build, but only if it’s before mid-June. Not particularly effective for aphids. |
| Armyworms, Cutworms, Loopers | 5.8-9.6 fl oz | 12 h | 7 d | 3 | G | Apply when small caterpillars are present, but only if it’s before mid-June. |
| Beet Leafhopper | 2.9-5.8 fl oz | 12 h | 7 d | 3 | G | Apply in May and/or early-to-mid June if BLH populations are building. |
| Colorado Potato Beetle | 5.8-9.6 fl oz | 12 h | 7 d | 3 | G | Apply at 50% egg hatch while larvae are small, but only if it’s before mid-June. |
| Lygus Bugs | 5.8 to 9.6 fl oz | 12 h | 7 d | 3 | G | Lygus bugs are on the label but not in the potato section. Apply when nymphs are present if it’s before mid-June. |
| Potato Psyllid | 2.9-5.8 fl oz | 12 h | 7 d | 3 | G (n+a) | Apply when adult psyllids are migrating into the field and it's before mid-June. If early nymphs are present, it may not control the nymphs that are on the underside of leaves where the product may not be as well distributed. |
Tuber Bulking
| Target | Application per Acre | REI | PHI | MOA | Eff. | Notes |
|---|---|---|---|---|---|---|
| Aphid | 5.8 to 9.6 fl oz | 12 h | 7 d | 3 | P | Not particularly effective for aphids. Use of pyrethroid insecticides is not recommended mid-season. If used, monitor for subsequent pest outbreaks. |
| Armyworms, Cutworms, Loopers | 5.8 to 9.6 fl oz | 12 h | 7 d | 3 | P | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when small caterpillars are present. Monitor for subsequent pest outbreaks. |
| Colorado Potato Beetle | 5.8 to 9.6 fl oz | 12 h | 7 d | 3 | P | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when larvae are small. Monitor for subsequent pest outbreaks. |
| Lygus Bugs | 5.8 to 9.6 fl oz | 12 h | 7 d | 3 | P | Lygus bugs are on the label but not in the potato section. Use of pyrethroid insecticides is not recommended mid-season. If used, apply when nymphs are present. Monitor for subsequent pest outbreaks. |
| Potato Psyllid | 12 h | 7 d | 3 | P (n+a) | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when psyllids are present. It may not provide adequate control of nymphs on the underside of leaves. Monitor for subsequent pest outbreaks. |
Late Tuber Bulking to Harvest
| Target | Application per Acre | REI | PHI | MOA | Eff. | Notes |
|---|---|---|---|---|---|---|
| Aphid | 5.8 to 9.6 fl oz | 12 h | 7 d | 3 | F-P | Not particularly effective for aphids. |
| Colorado Potato Beetle | 5.8 to 9.6 fl oz | 12 h | 7 d | 3 | G | Apply at 50% egg hatch while larvae are small. |
| Potato Psyllid | 2.9 to 5.8 fl oz | 12 h | 7 d | 3 | G (n+a) | Apply when adult psyllids are migrating into the field. |
| Tuberworm | 2.9-9.6 fl oz | 12 h | 7 d | 3 | E | Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest. PHI is 7-days. Thorough coverage of foliage is essential. Use high water volumes with ground or aerial applications to ensure the product is well distributed in the foliage. |