Table 1 Witches’ broom disease incidence in ten different locations of Guangdong province, China
Survey location | Location | Total number of investigated plants | Plants with disease | Incidence rate (%) | Disease index (%) |
|---|---|---|---|---|---|
Dongguan city | In the northeast | 635 | 110 | 17.32 | 16.27 |
In the southwest | 156 | 75 | 48.08 | 41.35 | |
Gaozhou city | Banqiao | 290 | 5 | 1.72 | 1.38 |
Guangzhou city | Yuexiu district | 110 | 0 | 0.00 | 0.00 |
Fanyu district | 126 | 4 | 3.17 | 2.65 | |
Tianhe district | 208 | 26 | 12.50 | 7.37 | |
Zengcheng district | 150 | 50 | 33.33 | 71.67 | |
Huizhou city | Huicheng district | 460 | 0 | 0.00 | 0.00 |
Huidong county | 120 | 35 | 29.17 | 25.00 | |
Jieyang city | Jie dong distric | 136 | 0 | 0.00 | 0.00 |
Rongcheng district | 156 | 1 | 0.64 | 0.01 | |
Meizhou city | Meijiang district | 510 | 0 | 0.00 | 0.00 |
Shenzhen city | Baoan district | 89 | 2 | 2.25 | 2.25 |
Luohu district | 405 | 0 | 0.00 | 0.00 | |
Zhongshan city | Shaxi town | 57 | 5 | 8.77 | 8.77 |
Tanzhou town | 100 | 0 | 0.00 | 0.00 | |
Zhuhai city | Xiangzhou district | 767 | 80 | 10.43 | 11.95 |
Qiao island | 100 | 0 | 0.00 | 0.00 | |
Shaoguan city | Wengyuen county | 1260 | 1015 | 80.56 | 44.33 |