Udbatta disease of Rice (Balansia oryzae)

Crop Rice (Oryza sativa)
Disease Udbatta disease
Pathogen A : Balansia oryzae
S : Balansia oryzae-sativa
Group Fungi

Udbatta disease symptoms

  • 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


Kingdom Fungi
Division DIV
Class CLS
Order ORD
Family FAM
Genus GEN
Species SP


  • 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.





  RICF008001 Learn more