What is Dieback Disease?

About Dieback Disease:

• The dieback disease was first reported in the country during the 1990s near Dehradun in Uttarakhand, while it was first noticed in Telangana in 2019.
• The dieback disease is mainly caused by the fungi Phomopsis azadirachtae.
• The dieback disease affects leaves, twigs and the inflorescence of neem trees of all ages and it causes almost 100% loss of fruit production in severely infected trees.
• The dieback is a fungal disease but the neem trees are sometimes hit by insect infestation and the combination of both increases its impact.
• The disease posing a threat to the neem trees has been identified as twig blight and dieback disease in Telangana, and it has reappeared in the state this year on a massive scale.
• The appearance of symptoms starts with the onset of the rainy season and becomes progressively severe in the later part of the rainy season and early winter.

Q1) What are Fungi?

Fungi are a kingdom of usually multicellular eukaryotic organisms that are heterotrophs (cannot make their own food) and have important roles in nutrient cycling in an ecosystem.

Source: Dieback disease hits neem trees in Telangana again