Table 2.
Titer of Candidatus Liberibacter asiaticus in individual adult psyllids (Diaphorina citri) sampled in yellow sticky traps as determined by qPCR in relation to sampled regions.
| Ct Range (HLBaspr) Range (Titer) a | Southwestern (Avaré) b | Southwestern (S. C. R Pardo) | Central (Araraquara) | Northern (Bebedouro) | Northern (Frutal) | Southwestern (Iaras) | Central (Gavião Peixoto) |
Overall |
|---|---|---|---|---|---|---|---|---|
| <15.6 (>6.1) | 22 (1.5%) | 20 (1.4%) | 14 (0.7%) | 5 (0.6%) | 2 (0.8%) | - | - | 63 (1.0%) |
| 15.7 to 19.1 (5.1 to 6.0) | 109 (7.6%) | 157 (10.9%) | 148 (7.1%) | 64 (8.0%) | 10 (4.0%) | 2 (0.9%) | - | 490 (6.4%) |
| 19.2 to 22.6 (4.1 to 5.0) | 202 (14.2%) | 207 (14.4%) | 307 (14.7%) | 103 (12.9%) | 33 (13.4%) | 17 (8.0%) | 31 (13.0%) | 900 (12.9%) |
| 22.7 to 26.0 (3.1 to 4.0) | 227 (15.9%) | 261 (18.2%) | 384 (18.4%) | 116 (14.6%) | 54 (21.9%) | 50 (23.5%) | 59 (24.8%) | 1151 (19.6%) |
| 26.1 to 29.4 (2.1 to 3.0) | 286 (20.1%) | 301 (20.9%) | 405 (19.4%) | 132 (16.6%) | 34 (13.8%) | 42 (19.7%) | 49 (20.6%) | 1249 (18.7%) |
| 29.5 to 32.9 (1.1 to 2.0) | 341 (23.9%) | 303 (21.1%) | 469 (22.4%) | 192 (24.1%) | 53 (21.5%) | 62 (29.1%) | 52 (21.8%) | 1472 (23.4%) |
| 33.0 to 35.0 (0.4 to 1.0) | 238 (16.7%) | 189 (13.1%) | 365 (17.4%) | 184 (23.1%) | 61 (24.7%) | 40 (18.8%) | 47 (19.7%) | 1124 (19.1%) |
| Sum | 1425 | 1438 | 2092 | 796 | 247 | 213 | 238 | 6449 |
a Ct values range were based on titer quantification using equation for the copy number of 16SrDNA from Las [30]. b In each region, the evaluated number of samples with Ct values in the range is presented, with the percentage in relation to the region in parentheses.