Tiny invader that has wreaked havoc in US set to mussel in on Scotland

by Jenny Haworth

INVASIVE Russian molluscs that have cost the American economy more than $3 billion (£2 billion) are heading towards Scotland, experts have warned, with little that can be done to stop them getting in.

The stripy zebra mussels are wreaking havoc in the United States and Ireland, clogging up power stations and water treatment plants and devouring crucial nutrients in lakes and rivers.

Now the tiny creatures, which can produce up to a million eggs a year, are on their way to Scotland, according to experts.

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