Fungicides
Captan (Wettable Powder 50%)
3 kg per 1000 L water. First spray from silver-tip to bud swelling; subsequent sprays after petal fall as needed
Product Name: Captan (Wettable Powder 50%)
Trade Name: Ortocide
Group: Phthalimides
Mode of Action: Disrupts enzymatic activity involved in metabolism
WHO Toxicity Class: U (Not acutely toxic under normal conditions)
Type: Non-systemic fungicide with preventive and curative effect
Pre-harvest Interval (PHI): 10 days
Crops and Application Rates:
| Crop | Disease | Application Rate |
| Apple | Apple Scab | 3 kg per 1000 L water. First spray from silver-tip to bud swelling; subsequent sprays after petal fall as needed |
| Stone fruits (peach, apricot, cherry, etc.) | Peach Leaf Curl | 3–3.5 kg per 1000 L water |
| Stone fruits | Shot Hole Disease | 3 kg per 1000 L water |
| Grapes | Downy Mildew | 3 kg per 1000 L water |
| Ornamentals, forest trees, non-fruit plants | Damping-off (collar rot) | 5.7–10 g/m² mixed into soil up to 10 cm depth |
| Chickpea | Fusarium Wilt | 2 g/L water |
Application Management:
- Use with caution on peach and nectarine due to potential phytotoxicity and leaf drop.
- Avoid mixing with oils; allow at least 10 days between applications of Captan and oil-based sprays.
- Do not mix with lime or lime-containing compounds (e.g., Bordeaux mixture) or use alkaline water, as Captan degrades rapidly under such conditions.
- Avoid use under prolonged cloudy, cool conditions, or with strong wetting agents.
