Root rot disease

root rot disease
    Causal organism: Phellinus noxious
    Symptoms
    • Brown root rot disease caused by Phellinus noxius, have rhizomorphs found in the infected roots that form a continuous fungal skin, tawny brown, becoming almost dark with age.
    • The diseased roots develop a very rough and irregular surface through a thick layer of soil adhering to them.
    • In early stage, the rot is pale brown but later, brown zigzag lines appear. At a fairly advanced stage, the brown network of lines can also be seen on the wood surface beneath the bark.
    • The fruit body is a hard, dark brown bracket fungus which is dark grey on the underside.

    Management
    • Application of lime @ 2.5tones\ha
    • Infected and healthy roots are washed with Emisan (mercurial compound)

Last modified: Thursday, 29 December 2011, 6:37 AM