Dr Hoch's team extended this idea, arguing that as a plant starts to disassemble its light-gathering apparatus in preparation for winter, its leaves become particularly sensitive to light damage.

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When the mulch on the ground is made of leaves from fall past, pine needles of winter present and ever-so-slight hints of green desperately attempting to push through.

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After his downfall winter sets in, the apples fall and the branches lose their leaves.

ECONOMIST: English theatre

As winter approaches, the trees are bare except for a few remaining leaves dangling from their branches.

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People who had a system installed in winter often found that it stopped working in spring, as trees sprouted leaves that blocked the terminal's view of the base-station.

ECONOMIST: MONITOR

In winter of course healthy and sick ash trees are difficult to tell apart as the leaves will all have fallen to the ground.

BBC: The heartbreak of watching the slow death of ash trees