Table 1.
Duration in days (mean ± SD) of the different instars and/or total nymphal period of L. hyalinus at six constant temperatures
| Temp (°C) | Instarb | Total nymphal periodb | |||||
|---|---|---|---|---|---|---|---|
| Na | N1 | N2 | N3 | N4 | N5 | ||
| 18 | 140 | 10.02 ± 1.68a (43) | 11.04 ± 1.81a (27) | 11.92 ± 2.71a (25) | 12.5 ± 2.35a (12) | /(0) | |
| 22 | 125 | 5.52 ± 0.72b (115) | 3.78 ± 0.43b (115) | 3.40 ± 0.51b (115) | 3.88 ± 0.53b (102) | 6.25 ± 1.21a (70) | 22.77 ± 2.04a (70) |
| 26 | 80 | 4.23 ± 0.90c (70) | 3.12 ± 1.00c (66) | 3.18 ± 1.49c (60) | 3.11 ± 0.59c (57) | 4.90 ± 0.88b (51) | 18.27 ± 1.97b (51) |
| 30 | 112 | 2.16 ± 0.21d (102) | 1.45 ± 0.10d (102) | 1.47 ± 0.12d (85) | 1.62 ± 0.12d (82) | 2.67 ± 0.30c (78) | 9.35 ± 0.38c (78) |
| 34 | 96 | 1.28 ± 0.07e (92) | 1.23 ± 0.18e (67) | 1.21 ± 0.17e (44) | 1.29 ± 0.14e (38) | 2.28 ± 0.13d (36) | 7.27 ± 0.39d (36) |
| 36 | 110 | /(83) | /(67) | /(56) | /(50) | /(55) | 6.08 ± 0.51e (45) |
| X2 | 392.9 | 328.9 | 288.9 | 257.5 | 204.8 | 262.0 | |
| df | 4 | 4 | 4 | 4 | 3 | 4 | |
Different letters within a column indicate significant differences at α = 0.05 (Kruskal Wallis test).
At 36°C, instar periods (N1-N5) were not monitored.
a Initial number of first instars tested.
b The number of surviving nymphs based on which the mean and SD values were calculated is placed in parentheses.