Pests, including slugs, have stopped the shipment of hundreds of Christmas trees in Hawaii.
Seventy-four containers full of Christmas trees are infested with pests.
Each container holds about 300 trees.
Slugs found on trees could carry a parasite that causes severe illness.
Trees that are infested are either sent back to the mainland or are treated.
For City Mill, 60 percent of its containers are sitting on the docks until agricultural officials can treat them for slugs.
That means only three stores are selling Christmas trees right now.
Trees for under $20 on Black Friday at City Mill sold out within minutes.
All eight Oahu stores will eventually have fresh-cut Douglas and Noble Firs in stock but the estimated time of arrival is still pending.