Aphid performance on developmentally pre-tuber-filling and tuber-filling plants
| Species . | Plant age . | % surviving to adulthood . | Median development time in days . | Mean fecundity (nymphs adult-1day-1)a . | Rma . |
|---|---|---|---|---|---|
| Macrosiphum euphorbiae (ADAS 99/11) | Pre-tuber-filling | 90.0 (40) | 9 (34) | 1.28 (±0.10) | 0.254 (±0.007) |
| Tuber-filling | 82.5 (40) | 10 (33) | 0.70 (±0.11) | 0.193 (±0.009) | |
| Fisher's exact P>0.05 | H1=18.93 P<0.01 | t17=3.80 P<0.01 | t14=5.43 P<0.01 | ||
| Myzus persicae (ADAS 99/12) | Pre-tuber-filling | 92.2 (77) | 8 (72) | 0.91 (±0.10) | 0.245 (±0.006) |
| Tuber-filling | 63.8 (69) | 12 (44) | 0.41 (±0.04) | 0.152 (±0.011) | |
| χ21=17.427 P<0.01 | H1=75.09 P<0.01 | t18=4.92 P<0.01 | t17=6.91 P<0.01 |
| Species . | Plant age . | % surviving to adulthood . | Median development time in days . | Mean fecundity (nymphs adult-1day-1)a . | Rma . |
|---|---|---|---|---|---|
| Macrosiphum euphorbiae (ADAS 99/11) | Pre-tuber-filling | 90.0 (40) | 9 (34) | 1.28 (±0.10) | 0.254 (±0.007) |
| Tuber-filling | 82.5 (40) | 10 (33) | 0.70 (±0.11) | 0.193 (±0.009) | |
| Fisher's exact P>0.05 | H1=18.93 P<0.01 | t17=3.80 P<0.01 | t14=5.43 P<0.01 | ||
| Myzus persicae (ADAS 99/12) | Pre-tuber-filling | 92.2 (77) | 8 (72) | 0.91 (±0.10) | 0.245 (±0.006) |
| Tuber-filling | 63.8 (69) | 12 (44) | 0.41 (±0.04) | 0.152 (±0.011) | |
| χ21=17.427 P<0.01 | H1=75.09 P<0.01 | t18=4.92 P<0.01 | t17=6.91 P<0.01 |
Values are the means ± S.E.M., N=7-10 clip-cages.