Table 3.
Mean mortality (% ± SE) of Prostephanus truncatus adults after 7 and 14 days on maize treated with the SC formulation of chlorantraniliprole, at four doses (0.01, 0.1, 1 and 10 ppm) under three temperatures (20, 25 and 30 °C). Within each column, means followed by the same lowercase letter are not significantly different (in all cases DF = 3, 35, Tukey–Kramer HSD test at 0.05). Within each row, means followed by the same uppercase letter are not significantly different (in all cases DF = 2, 26, Tukey–Kramer HSD test at 0.05). Where no letters exist, no significant differences were recorded.
| Exposure: 7 Days | |||||
|---|---|---|---|---|---|
| Temperature | 20 °C | 25 °C | 30 °C | ||
| Dose (ppm) | F | p | |||
| 0.01 | 1.1 ± 0.7 | 1.7 ± 0.8 b | 3.9 ± 1.1 b | 2.4 | 0.11 |
| 0.1 | 2.2 ± 0.9 | 2.2 ± 0.9 ab | 5.0 ± 1.2 b | 2.0 | 0.16 |
| 1 | 2.8 ± 0.9 B | 6.1 ± 1.6 Bab | 15.6 ± 2.8 Aa | 10.5 | 0.01 |
| 10 | 3.3 ± 1.2 B | 7.2 ± 1.5 ABa | 16.7 ± 3.2 Aa | 9.6 | 0.01 |
| F | 1.0 | 4.6 | 9.0 | ||
| p | 0.43 | 0.01 | 0.01 | ||
| Exposure: 14 Days | |||||
| F | p | ||||
| 0.01 | 7.8 ± 1.2 b | 8.9 ± 1.1 b | 12.8 ± 2.5 b | 1.5 | 0.25 |
| 0.1 | 10.0 ± 1.4 b | 11.1 ± 2.2 b | 17.2 ± 2.2 b | 2.8 | 0.08 |
| 1 | 36.7 ± 4.2 Ba | 76.7 ± 5.0 Aa | 90.6 ± 1.6 Aa | 35.5 | <0.01 |
| 10 | 46.1 ± 5.3 Ba | 89.4 ± 3.5 Aa | 96.1 ± 1.4 Aa | 39.9 | <0.01 |
| F | 32.5 | 78.9 | 207.7 | ||
| p | <0.01 | <0.01 | <0.01 | ||