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Mexican avocados have been held up at the American border after the US Department of Agriculture temporarily blocked their import after a row over potatoes.
Five trucks carrying 100 tonnes of the fruit from the Mexican state of Jalisco were halted at the border last week after the US reneged on an export agreement signed last year.
The US had previously only accepted them from the neighbouring state of Michoacán because of concerns about the prevalence of an invasive species of Mediterranean fly which infests the Jalisco crop.
But the trucks containing the fruit were turned away at the border despite complying with hygiene regulations because of a temporary halt on US potato imports, according to to the Univision TV station.
Mexico first allowed the import of US potatoes in 2014 but following a legal injunction submitted by domestic producers stopped trade for a few hours during which time the export agreement was suspended.
Meanwhile the US is one of the largest avocado markets in the world but demand is mostly met by domestic farms in California and Florida.
It is unclear whether the decision to halt imports is connected to the inauguration of Donald Trump though it comes as he announced plans to follow through on his campaign promise to build a wall on the border and make Mexico pay.
On his first full business day in office Mr Trump signed an executive order signalling his intention to renegotiate the terms of the North American Free Trade Agreement (Nafta).
The controversial orders Donald Trump has already issued
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