Assail 70 WP works via contact and ingestion. Translaminar and foliar systemic (moves to new leaves). Use a non-ionic or silicone surfactant or a MSO spray adjuvant to enhance spray coverage. Don’t use stickers. Chemigation may be best when the canopy is dense; use 0.2-inch water or less and the highest allowed rate. Don’t apply Assail 70WP or other neonicotinoid insecticides (Group 4A) if one was applied at planting or at hilling. Make only two consecutive in-season, foliar applications of Assail 70WP. Similar products with acetamiprid are available but use rates vary.
Material Type:
Insecticides and Repellents
Chemical Classification:
Neonicotinyl
Signal Word:
Caution
Formulation:
Spray Powder
EPA Number:
8033-23
Usage for acetamiprid on Potatoes
Max Application per Season: 7oz
Emergence to Row Closure
| Target | Application per Acre | REI | PHI | MOA | Eff. | Notes |
|---|---|---|---|---|---|---|
| Aphid | 1-1.7 oz | 12 h | 7 d | 4A | E | Apply when aphids are first detected. |
| Beet Leafhopper | 0.6-1.7 oz | 12 h | 7 d | 4A | E | Apply when BLHs are present to minimize spread of phytoplasma diseases (e.g., purple top). Retreat after 7-10 days to maintain control of incoming BLHs. |
| Colorado Potato Beetle | 0.6-1.7 oz | 12 h | 7 d | 4A | E | Apply when about 50% of the eggs have hatched larvae are small. |
| Potato Psyllid | 0.6-1.7 oz | 12 h | 7 d | 4A | G (a) | The label does not mention potato psyllids, but applications targeting other pests can control them. Apply when adult psyllids are migrating into the field. |
Tuber Bulking
| Target | Application per Acre | REI | PHI | MOA | Eff. | Notes |
|---|---|---|---|---|---|---|
| Aphid | 1-1.7 oz | 12 h | 7 d | 4A | E | Apply when aphids are first detected. |
| Beet Leafhopper | 0.6-1.7 oz | 12 h | 7 d | 4A | E | Apply when BLHs are present to minimize spread of phytoplasma diseases (e.g., purple top). Retreat after 7-10 days to maintain control of incoming BLHs. |
| Colorado Potato Beetle | 0.6-1.7 oz | 12 h | 7 d | 4A | E | Apply when about 50% of the eggs have hatched larvae are small. |
| Potato Psyllid | 0.6-1.7 oz | 12 h | 7 d | 4A | G (a) | The label does not mention potato psyllids, but applications targeting other pests can control them. Apply when adult psyllids are migrating into the field. |
Late Tuber Bulking to Harvest
| Target | Application per Acre | REI | PHI | MOA | Eff. | Notes |
|---|---|---|---|---|---|---|
| Aphid | 1-1.7 oz | 12 h | 7 d | 4A | E | Apply when aphids are first detected. |
| Colorado Potato Beetle | 0.6-1.7 oz | 12 h | 7 d | 4A | E | Apply when about 50% of the eggs have hatched larvae are small. |
| Potato Psyllid | 0.6-1.7 oz | 12 h | 7 d | 4A | G (a) | The label does not mention potato psyllids, but applications targeting other pests can control them. Apply when adult psyllids are migrating into the field. |