Christian Ladefoged is the manager of Shielsknowe Forresty near Jedburgh.He said:
"It makes me really angry that people have just come and taken these trees. We put a lot of effort and work into growing them and for this many to be taken away, it is really frustrating."
More top news
Mountain rescue teams from Keswick, Cockermouth, and Wasdale have dealt with seven incidents since Friday.
Cyclists in west Cumbria are being encouraged to get their bikes marked and registered to help deter thieves.
A Cumbrian mill has been awarded £1.4 million by the Heritage Lottery Fund to help get it back in working order.