A few of you asked why we'd need
to start our ailing
raspberry patch from
freshly purchased stock rather than just digging up new shoots the way
we've done to expand it in the past. The short answer is --- viruses.
Over time, viruses tend
to build up in both raspberries and strawberries, causing declining
vigor that carries over to any offshoots you propagate using homestead
methods. Reputable nurseries instead rely upon lab techniques to clone
without allowing viruses to come along for the ride, resulting in
certified virus-free stock.
So if your patch starts
ailing for no apparent reason, a fresh start can be worth a few bucks
of nursery stock. Be sure to plant in a new location so the diseases
won't spread quickly to your new plants and you should get many more
years of raspberry for relatively little effort or expense.