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Anthracnose is a common fungal disease that affects mango trees worldwide. Recognizing its signs early can help in managing the disease effectively and protecting the fruit yield. This article outlines the key symptoms of anthracnose in mango trees.
Symptoms on Leaves
One of the first signs of anthracnose appears on the leaves. Look for small, dark, sunken spots that may enlarge over time. These spots often have a yellow halo around them. As the disease progresses, leaves may curl, wilt, and drop prematurely, leading to defoliation.
Signs on Fruits
The most noticeable symptoms occur on the mango fruit. Infected fruits develop dark, sunken lesions that can vary in size. These lesions often have a concentric ring pattern and may ooze a dark, sticky exudate under humid conditions. Over time, infected fruits may rot, reducing marketability.
Stem and Branch Symptoms
Anthracnose can also infect the stems and branches of mango trees. Look for black, sunken cankers that may cause dieback of affected parts. These cankers often expand and girdle branches, leading to die-off and weakening of the tree structure.
Additional Indicators
- Presence of dark, sunken spots on young shoots
- Fungal growth under humid conditions
- Premature fruit drop
- Discoloration and cracking of infected areas
Early detection of these signs allows for timely intervention, such as applying appropriate fungicides and practicing good sanitation. Regular monitoring is essential to prevent widespread damage and ensure healthy mango production.