Crop | Rice (Oryza sativa) |
Disease | Udbatta disease |
Pathogen | A : Balansia oryzae S : Balansia oryzae-sativa |
Group | Fungi |
- A white mycelial mat ties panicle branches together so that panicle emerge as single, straight, dirty coloured, cylindrical rods much resembling an agarbatti or udbattta.
- The spikelets are cemented to the central rachis and the size is remarkably reduced.
Pathogen | A : Balansia oryzae S : Balansia oryzae-sativa |
Mycelium | |
Asexual reproduction | Pycnidiospores : Hyaline, needle shaped and 4-5 celled. |
Sexual reproduction |
Reproductive Structures | ||
Mode | Spore | Fruiting Body |
Asexual reproduction | Pycnidiospores | Pycnidium |
Sexual reproduction |
Favorable Conditions | Warm temperature, high humidity, early stage of plant from maximum tillering to panicle initiation. |
Primary spread | PRISPRD |
Secondary spread | SECSPRD |
Collateral Hosts | COHOST |
- Use disease free seeds for sowing. Seed treatment with Captan or Thiram.
- Hot water treatment of the seeds at 50-540 C for 10 minutes before sowing gives effective control of the disease.
- Solar treatment of seeds is effective in killing the pathogen carried in the seeds, if any.
- It is also advisable to avoid using seeds from fields where the disease is noted.
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