Percentage of redbay trees with greater than one-third crown wilt symptoms and from which Raffaelea spp. was reisolated after fungicide injection and pathogen inoculation treatments.
| Tree injection treatment | Tree inoculation treatment | No. of trees | Cumulative number of trees with wilt symptoms in more than one-third of the crown by time since inoculation | Number of trees from which Raffaelea spp. was reisolatedy | |||
|---|---|---|---|---|---|---|---|
| 6 weeks | 9 weeksz | 12.5 weeksz | 30 weeksz | ||||
| Propiconazole | Raffaelea spp. plug | 10 | 0 | 0 | 0 | 0 | 0 |
| None | Raffaelea spp. plug | 10 | 3 | 7 | 9 | 9 | 8 |
| None | Sterile agar plug | 5 | 0 | 0 | 0 | 0 | 0 |
↵zAmong trees inoculated with Raffaelea spp., the proportion of trees with greater than one-third crown wilt symptoms significantly differed between the propiconazole group and the untreated group after 9 weeks (χ2 = 10.77, P = 0.001) and 12.5 or more weeks (χ2 = 16.36, P = 0.0001).
↵yAmong trees inoculated with Raffaelea spp., the proportion of trees from which Raffaelea spp. was reisolated significantly differed between the propiconazole group and the untreated group (χ2 = 13.33, P = 0.0003).