Proactive prevention – a sustainable approach before anthracnose breaks out
Anthracnose, caused by Colletotrichum spp., can spread widely and persist in soil and plant residue, and breaks out easily in prolonged wet conditions. Once crops are infected, treatment is much harder and more costly. Early, correct and continuous prevention is therefore an essential strategy, especially for high-value fruit crops such as durian, mango, rambutan, pepper…
Anthracnose prevention measures by group
1. Cultural measures – a long-term sustainable foundation
- Prune – create an open canopy to reduce humidity within the foliage and suppress fungal growth.
- Do not plant too densely, avoiding shade that raises humidity.
- Fertilise in balance, limiting excess nitrogen (N) because very young leaves are easily infected.
- Keep fields clean regularly: collect fallen branches and leaves, destroy infected plant residue.
- Rotate sensibly with crops less susceptible to Colletotrichum.
2. Biological measures – environmentally friendly
- Use the antagonistic fungus Trichoderma spp. to suppress pathogenic fungi in the soil.
- Build up beneficial soil microorganisms to improve crop resistance.
- Use biological preventive products on a schedule, especially when the plant flushes and flowers.
3. Chemical measures – proactively protecting crops in the rainy season
- Spray broad-spectrum systemic fungicides that move within plant tissue and control disease hidden deep in the vascular tissue.
- Spray just before and after the first rains of the season, or when the plant is flushing – flowering.
- Rotate active ingredients to limit resistance.
Key timings for anthracnose prevention
| Crop stage | Preventive spray goal |
|---|---|
| Young flush | Protect new leaves – the most susceptible part |
| Before – after flowering | Prevent flower rot – fungal attack on flower stalks |
| Fruit development | Prevent fruit canker, fruit cracking, stem-end rot |
| After prolonged rain (over 2 days) | Stop spore spread in humid conditions |
Recommended product for anthracnose prevention
Xinazo 250SC – A broad-spectrum fungicide with penetrating, broad-spectrum action
→ For both prevention and treatment of anthracnose, particularly useful in the rainy season or in areas with high disease pressure.
Details: Xinazo 250SC for anthracnose
Conclusion
Preventing anthracnose is not difficult if growers proactively clean the orchard, prune at the right time and spray appropriately. Don't wait for an outbreak before acting – act early!
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