|
Plant extracts |
Treatment groups and dosage (N=50) |
| 10ppm |
40ppm |
80ppm |
Niclosamide
(4mg/200ml) |
Chlorine free water |
| Aloe secundiflora |
9.0 ± 2.6*a |
11.6 ± 2.3*a |
20.0 ± 2.3*a |
48.67 ± 0.7 |
2.3 ± 1.9 |
| Aspilia pluriseta |
7.6 ± 1.4*a |
12.6 ± 2.7* |
24.7 ± 1.2*a |
- |
- |
| Psidium guajava |
8.7 ± 2.7*a |
9.3 ± 1.8*a |
9.6 ± 2.6*a |
- |
- |
| Balanites aegyptiaca |
11.3 ± 3.0*a |
14.0 ± 3.5*a |
17.6 ± 2.6*a |
- |
- |
| Azadirachta indica |
13.3 ± 4.4*a |
19.0 ± 2.6*a |
28.7 ± 3.2*a |
- |
- |
| Amaranthus hybridus |
15.3 ± 0.7*a |
38.3 ± 3.2*a |
44.0 ± 2.3a |
- |
- |
|
| All values are expressed as Mean ± SEM. *P<0.05 for extract treated group versus
Niclosamide-treated group by unpaired Student’s t-test; aP<0.05 for extract-treated
group versus chlorine-free water treated group by unpaired Student’s t-test. |
| Table 1: Molluscicidal effects of crude aqueous extracts of Aloe secundiflora,
Aspilia pluriseta, Psidium guajava, Balanites aegyptiaca, Azadirachta indica and
Amaranthus hybridus on Biomphalaria pfeifferi snails. |
