Table 2 Inhibition effects of ginger EO on leaf blight and sporulation of, P colocasiae.
From: Fungicidal properties of ginger (Zingiber officinale) essential oils against Phytophthora colocasiae
Essential oil | Latency time | Leaf blight symptoms | Sporangia production | ||
|---|---|---|---|---|---|
Concentrations (ppm) | Hour | Diameter (mm) | Inhibition* % | 103 Sporangia/mL | Inhibition* % |
0.00 | 72 | 16.50 ± 0.79a | 0.00 ± 0.00e | 95.00 ± 1.29a | 0.00 ± 0.00e |
156 | 72 | 8.92 ± 0.52b | 45.90 ± 3.19d | 38.25 ± 1.49b | 59.73 ± 1.57d |
312 | 72 | 5.85 ± 0.28c | 64.54 ± 1.72c | 24.50 ± 1.19c | 74.21 ± 1.25c |
625 | 72 | 3.00 ± 0.27d | 81.81 ± 1.69b | 12.75 ± 0.85d | 86.57 ± 0.89b |
1250 | = | 0.00 ± 0.00e | 100 ± 0.00a | 0.00 ± 0.00e | 100 ± 0.00a |
2500 | = | 0.00 ± 0.00e | 100 ± 0.00a | 0.00 ± 0.00e | 100 ± 0.00a |
5000 | = | 0.00 ± 0.00e | 100 ± 0.00a | 0.00 ± 0.00e | 100 ± 0.00a |
Metalaxyl | = | 0.00 ± 0.00e | 100 ± 0.00a | 0.00 ± 0.00e | 100 ± 0.00a |
