Investigation on factors responsible for Sal (Shorea robusta) mortality (Consultancy to IFP, Ranchi)

Finding of the project :

• Most of the trees showing top-drying, dieback symptoms
• Sal heartwood borer infestation and Polyporus shoreae infestation.
• The amount of wood dust, less or more, together with the extent of drying of the tree- crown, indicates intensity and stage of Sal borer attach.
• Root exposed in the air due to surface runoff.
• Top-drying trees were reported near the waterlogged area and water drainage area
• Exposed Sal roots probably due to soil erosion by the water.
• Mortality might be due to anthropogenic activity (highway/bridge contraction) colonies, pathways, Farm buildings.
• Termites and fungus attack.