D-shaped holes in the bark or new tree shoots emerging at the root zone of your ash trees may be a sign of infestation by the Emerald Ash Borer, an insect native to the Far East that targets ash trees, says Dave Dailey of Birchcrest Tree and Landscape, in Rochester, N.

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In "An Autumn Grove" he depicts a tree pushing up from a rocky landscape, its branches semibare.

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After a short flight from Kathmandu to the mountain hamlet of Lukla, it took me 12 days to reach Base Camp, trekking 160km and climbing 10, 000 feet, hiking through dense forest, over a dozen suspension bridges, above the tree line and, finally, into a frozen landscape of ancient rock and glacial ice.

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Mr Graham said the tree would not be taking a bow and retiring from the landscape just yet.

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It looked like a vista from an epic Russian romance tree branches coated with ice and frozen vineyards running along the hilly landscape.

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He also remarked on how the tree had become a bit of a 'diamond' on the local landscape.

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"Even on a flat landscape - once you get say five kilometres away, you will find even a hedge or tree will obscure the view, " Mr Vince said.

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Heading inland again, 150km from Guerrero Negro towards the small town of San Ignacio, the landscape becomes more desert-like and some of the stranger desert plants, like the boojum tree, make an appearance.

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