RRDI_ricediseases_RootKnot

RRID- Bathalagoda LOGO

Rice In Sri Lanka - Rice Diseases

Root knot

Species of the nematode Meloidogyne cause root knot.The nematode becomes inactive after prolonged flooding.

Symptoms

  • The disease symptoms include enlargement of the roots and the formation of galls or knots. 
  • The swollen female nematode can be found in the center of this tissue.
  •  Plants are dwarfed, yellow, and lack vigor

Control measures

Deep ploughing and application of organic matter help reduce the disease condition.