Add Christmas trees to the list of items facing shortages and higher prices this year.Several factors are driving the trend, Newsday reported, including over-the-top sales last year during the first Christmas during the COVID-19 pandemic and supply chain issues this year.Experts said tree buyers should expect to pay between 10% and 30% more for both live trees and artificial trees this year and also have a smaller selection to choose from."Prices have gone up significantly," John Mohlenhoff, secretary of the hook and ladder company for the Huntington fire department, told the newspaper. "We’ve had to compromise on what types of trees we’re getting, sizes, everything."RELATED: Christmas tree shortage: Supply chain backlog could mean slim.