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Conkers under 'alien' threat

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

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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