| Crop | Coconut (Cocos nucifera) |
| Disease | Ganoderma Wilt/Tanjore Wilt/Basal Stem End Rot |
| Pathogen | Ganoderma lucidem |
| Group | Fungi |
Stem bleeding, bracket formation, drooping of leaves and big fructification. Image taken from "TNAU Coconut Diseases".
- Initial symptom : Yellowing and drooping of the outer whorl of leaves.
- Exudation of reddish brown liquid through cracks at the base of the trunk and oozing spread upwards.
- Decaying of tissues at bleeding point and rotting of the basal portion of the stem.
- The bark turns brittle and often gets peeled off in flakes, leaving open cracks and crevices. The internal tissues are discoloured, disintegrated and emitting a bad smell.
- Bracket formation at the base of the trunk during rainy season. Ultimately the palm dies off.
| Pathogen | |
| Mycelium | |
| Asexual reproduction | : |
| Sexual reproduction | : |
| Reproductive Structures | ||
| Mode | Spore | Fruiting Body |
| Asexual reproduction | ||
| Sexual reproduction | ||
| Favorable Conditions | |
| Primary spread | |
| Secondary spread | |
| Collateral Hosts |
Cultural Methods
- Remove and destroy all affected palms.
- Green manure crops must be raised and ploughed in situ before flowering.
Chemical Methods
|
Fungicide Aureofungin + Copper sulphate Aureofungin-sol 2 g +1 g Copper Sulphate in 100ml water applied as root feeding. | |
|
Fungicide Hexaconazole Root feeding with Tridemorph 2ml or Hexaconazole 1 ml with 100 ml of water (3 times at 3 months interval) | |
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