Recently I read a book written by Dr. Vilas Bardekar in Marathi "Pokhilla" पोखिला which means Butterfly in Assamese. In the appendix he mentions about one tree from Assam : *Aquilaria agallocha *. The resin derived from this tree is very precious and valuable. Its name is mentioned as 'UD" or 'Agarwood' ऊद/ अगरवूड When the tree gets infested with a fungus* Phaeoacremonium parasitica* the tree starts producing this resin. It has a unique mixed and soothing fragrance. This fetches good value in international market. Dr Satish Phadke
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