| Crop | Rice (Oryza sativa) |
| Disease | False smut |
| Pathogen | Ustilaginoidea virens |
| Group | Fungi |
- Replacement of rice grains by white color, ball shaped fungal mycelia, namely false smut balls.
- Later during maturation, the false smut ball is covered with powdery chlamydospores and the color changes to yellow, green, olive green and finally to greenish black.
- One of the most devastating rice fungal diseases.
| Pathogen | Ustilaginoidea virens |
| Mycelium | MYCELIUM |
| Asexual reproduction | ASEXUAL : ASEXUALC |
| Sexual reproduction | SEXUAL : SEXUALC |
| Reproductive Structures | ||
| Mode | Spore | Fruiting Body |
| Asexual | NO INFO. | NO INFO. |
| Sexual | NO INFO. | NO INFO. |
| Favorable Conditions | RH >90%, 25-35°C, Rain, Soils with high nitrogen content |
| Primary spread | No information |
| Secondary spread | No information |
| Collateral Hosts | No information |
- Seed treatment with carbendazim 2.0g/kg of seeds.
- Spraying of copper oxychloride at 2.5 g/litre or Propiconazole at 1.0 ml/litre at boot leaf and milky stages will be more useful to prevent the fungal infection.
- At tillering and preflowering stages, spray Hexaconazole @ 1ml/lit or Chlorothalonil 2g/lit.
- At tillering and preflowering stages, spraying of carbendazim fungicide and copper base fungicide can effectively control the disease.
RICF005001