Table 2.
Cumulative number of Grapholita molesta per trap (mean ± SE) and percentages of nectarines damaged by G. molesta (mean ± SE) on fruits sampled at harvest (N = netted plots, C = un-netted control plots, I = un-netted plots treated with insecticides). For each cultivar and year, means followed by different letters are significantly different (traps: t-test, p < 0.05; damaged fruits: generalized linear mixed model (GLMM) analysis, Bonferroni correction, p < 0.05).
| Cultivar | Treatment | Grapholita molesta (no.) | Damaged Nectarines (%) | ||
|---|---|---|---|---|---|
| 2016 | 2017 | 2016 | 2017 | ||
| Amiga* | N | 5.0 ± 2.1 b | 39.0 ± 9.2 b | 0.4 ± 0.2 | 0.6 ± 0.3 c |
| C | 22.7 ± 1.7 a | 160.3 ± 11.5 a | 4.2 ± 0.8 | 9.4 ± 0.9 a | |
| I | - | - | 2.1 ± 0.5 | 3.4 ± 0.6 b | |
| Fire Top® | N | 8.7 ± 3.3 b | 39.0 ± 4.6 b | 0.0 ± 0.0 | 0.4 ± 0.2 b |
| C | 38.3 ± 1.9 a | 174.7 ± 30.4 a | 0.1 ± 0.1 | 6.2 ± 0.9 a | |
| I | - | - | 0.1 ± 0.1 | 4.1 ± 0.7 a | |