I have a few acres of Natchez blackberries that were set in 2013. They were not maintained in 2020. When I purchased the farm in the summer of 21 we pruned and tied them to the trellis. This spring I noticed 50% or more were infested with cane borers. Should I fight these borers, set new berries in a different location, or give it a year with no blackberries? I have a site that could be planted about 1,000 ft from the current sites.
I’ve read many sources that suggest blackberries provide a good harvest for 20 years. However, two growers have suggested 10 years is the maximum.