Raspberry Virus questions ...
I have a 10 year old raspberry patch that has fallen dramatically in yield. 2 years ago (which was very wet) was the 1st year it yielded poorly. I pruned year old canes annually but decided to chop it all back and see if that helped. New canes grew like crazy this year but I got almost zero fruit. However it was also a very very dry year here. A new patch I started 2 years ago also yielded nothing.
So; I suspect I may have a virus problem.
I am going to start a new raspberry patch with nursery plants this spring as IMHO you can never have too many raspberries.
questions are how far away from the existing patches does the new planting have to be and what other precautions, if any, are necessary to prevent transmission to the new plants. (if the existing patches come back then I'll just have more raspberries!!!)