Table 1.
Performance of cotton- and cucurbit-specialized aphids on different host plants.
| Host plant | No. repli. | No. repli. failed | Maximum longevity of failed population (d) | Maximum growth rate of successful population during 20 daysa | |||
|---|---|---|---|---|---|---|---|
| CO | CU | CO | CU | CO | CU | ||
| Chrysanthemum | 30 | 16 | 30 | 14.0 ± 1.7* | 8.9 ± 0.5 | 3.02 ± 0.33 | 0 |
| Potato | 30 | 0 | 4 | NA | 16.5 ± 0.5 | 9.41 ± 0.84** | 4.62 ± 0.41 |
| Tomato | 30 | 30 | 30 | 2.9 ± 0.2 ns | 2.7 ± 0.2 | 0 | 0 |
| Radish | 30 | 30 | 30 | 4.5 ± 0.3 ns | 4.0 ± 0.3 | 0 | 0 |
| Maize | 30 | 30 | 30 | 2.0 ± 0.0 ns | 2.0 ± 0.0 | 0 | 0 |
| Pumpkin | 30 | 16 | 0 | 14.4 ± 1.2 | NA | 2.77 ± 0.39** | 4.92 ± 0.42 |
| Zucchini | 30 | 0 | 0 | NA | NA | 12.45 ± 0.87** | 17.14 ± 1.02 |
aSuccessful population is defined here as that in which size was more than 2-fold of its original number after 20 days on a host plant.