Wednesday, April 25, 2012

Do you know what it is yet?

What a great day yesterday, 24 April, at King and Co, The Tree Nursery, in Rayne in Essex, with Paul King and Christine Walkden talking about Dutch Elm Disease for The One Show.

The day gave me a series of fascinating insights into the process of filming (the repetition, the retakes, the soundtrack and so on) and the important role that everyone behind the scenes has as part of the team to bring the story to you.
My contribution was to try to sound knowledgeable about the disease and to help inform the viewer about how the disease was transmitted – perhaps it may make people think about other potential disease or pest problems, such as Phytophthora or Asian Longhorn Beetle.

I tried to explain the structure of the tree, and that trees grow because of the division during the growing season of a single layer of cambium cells just below the bark.   The cells toward the centre become the xylem, transporting water from the soil to the leaves where the magic of photosynthesis can combine that water with atmospheric carbon dioxide to form oxygen to be released into the atmosphere and the carbohydrates (simple and complex) that the tree needs to survive.
I had hoped for a beetle, the vector of the fungal disease, as a visual aid but I was defeated by the postal service bringing the insect from Eastbourne; in the end I reverted to Beaver Leader mode and made a model from different coloured drinking straws, don’t think too badly of me.



Do you know what it is yet?

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