Conkers under 'alien' threat

The tradition of playing conkers could be under threat from an alien moth invasion.

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Could the humble blue tit save the conker?

It's that time of the year already - when playgrounds are filled with young people playing conkers. But the tradition could be under threat because of an alien moth invasion.

The leaf-mining moth is causing our horse chestnuts to produce smaller conkers. But experts now believe Blue Tits could hold the key to keeping the caterpillars under control. Mel Bloor explains.

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