potato wart fungus การใช้

• The dispute began when potato wart fungus was found in a field in New Annan on Prince Edward Island in late October.
• The United States has imposed an import ban on all island potatoes following the discovery in October that part of one field was infected with potato wart fungus.
• Then, an outbreak of potato wart fungus caused the United States to order a ban on imports of the island's potatoes, a restriction only just lifted.
• Sylvie Millette LeDuc said U . S . agriculture officials were ignoring Canada's evidence that the potato wart fungus found in a field in New Annan, Prince Edward Island, had yet to turn up anywhere else.