Table 1 The number of Calonectria spp. detected in Eucalyptus plantations from nine regions of Guangdong Province
Region | Soil samples | Diseased leaf samples | Total number of Calonectria isolates | ||||||
|---|---|---|---|---|---|---|---|---|---|
No. of soil samples | No. of soil samples from which Calonectria were isolated | Percentage of soil samples from which Calonectria were isolated (%) | No. of Calonectria spp. isolated from soil samples | No. of diseased leaf samples | No. of diseased leaf samples from which Calonectria spp. were isolated | Percentage of diseased leaf samples from which Calonectria spp. were isolated | No. of Calonectria spp. isolated from diseased leaf samples | ||
Shaoguan (a) | 44 | 1 | 2.27 | 2 | 0 | 0 | 0 | 0 | 2 |
Qingyuan (b) | 50 | 24 | 48.0 | 40 | 51 | 49 | 96.1% | 112 | 152 |
Heyuan (c) | 55 | 10 | 18.2 | 19 | 1 | 1 | 100% | 6 | 25 |
Zhaoqing (d) | 31 | 20 | 64.5 | 32 | 32 | 31 | 96.9% | 38 | 70 |
Huizhou (e) | 57 | 15 | 26.3 | 28 | 28 | 27 | 96.4% | 91 | 119 |
Yunfu (f) | 20 | 2 | 10.0 | 2 | 0 | 0 | 0 | 0 | 2 |
Dongguan (g) | 50 | 20 | 40.0 | 37 | 0 | 0 | 0 | 0 | 37 |
Jiangmen (h) | 47 | 10 | 21.3 | 20 | 40 | 40 | 100% | 108 | 128 |
Yangjiang (i) | 30 | 15 | 50.0 | 27 | 32 | 32 | 100% | 44 | 71 |
Total | 384 | 117 | 30.5 | 207 | 184 | 180 | 97.8% | 399 | 606 |