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Table 1. - Pre-harvest leafhopper activity and stand height of treated and untreated varieties during second and third cuttings.
| Rate | Pre-Harvest | Pre-Harvest | ||
|---|---|---|---|---|
| of | Potato | Stand | ||
| Insecticide | Treatment | Leafhopper | Height | |
| Variety | Treatment | Lbs ai/Ac | per 10 Sweeps | Inches |
| Treated - 30 June | Second Cutting - 11 July | |||
| ABI 9045 | Ambush 25W | < 0.1 | 4.3 a | 19.0 b |
| ABI 9045 | Untreated | 26.5 c | 17.8 a | |
| Provico | Ambush 25W | < 0.1 | 4.8 a | 19.7 b |
| Provico | Untreated | 16.8 b | 17.7 a | |
| P < 0.05 | P < 0.05 | |||
| Treated - 28 July | Third Cutting - 19 August | |||
| ABI 9045 | Sevin XLR | 1.0 | 2.3 a | 19.8 b |
| ABI 9045 | Untreated | 10.8 c | 15.3a | |
| Provico | Sevin XLR | 1.0 | 3.0 ab | 19.2b |
| Provico | Untreated | 8.8 bc | 16.0 a | |
| P < 0.1 | P < 0.1 | |||
| Means followed by the same letter within a column are not significantly different at level of significance indicated. | ||||