Table 3: Intensity of different disease symptoms on water hyacinth in different Awash catchment water bodies in the Rift Valley during 2008.
|
No. |
Water bodies |
Number of sample areas surveyed |
Mean disease incidence (%) |
Diseases Severity (%) |
|
1. |
Aba Samuel Dam |
44 |
21.93 |
16.00 (4.00) |
|
2. |
Afar Gidb |
10 |
16.50 |
13.10 (4.00) |
|
3. |
Awash River |
18 |
3.94 |
22.00 (4.00) |
|
4. |
Bate Gurmame |
12 |
17.00 |
12.00 (4.00) |
|
5. |
Dodo Wedera |
44 |
15.61 |
20.00 (4.00) |
|
6. |
Ellen |
33 |
34.40 |
30.00 (5.00) |
|
7. |
Ellen Golode |
15 |
25.24 |
27.00 (5.00) |
|
8. |
Koka Dam |
10 |
15.37 |
12.50 (4.00) |
|
9. |
Melka Hida |
15 |
29.10 |
28.00 (5.00) |
|
10. |
Sire Robi |
32 |
21.55 |
25.50 (5.00) |
|
11. |
Tere |
24 |
8.98 |
15.00 (4.00) |
|
|
Mean |
23 |
19.06 |
- |
Source; Tegene, et al., [52]; Values in parenthesis indicates disease severity rated based on 1 to 6 scale.