"Peter James" wrote

My autumn fruiting raspberries are now in their fourth year and their
cropping level is appalling. The last three years saw no crop apart
from literally four or five fruit. This year maybe a cup full of
berries from eight canes.

Each winter I cut the canes down to the ground in February and mulch
them with compost. I feed them with chicken pellets twice a year.

My inclination is to dig them up and to replace them. On another forum
someone suggested leaving the canes until next year and to treat them as
a summer fruiting variety as it's not unknown for nurserymen to make a
mistake when bundling up fruit canes for dispatch. And yet they do
fruit in the autumn but only a very little. So I'm not sure this is a
good suggestion to follow.

I would be grateful for any thoughts from the regulars on this news
group.


Perhaps they have a virus infection, not uncommon.
Strange but whilst as a consumer I like raspberries as an allotment gardener
I hate the things. So many times I see them left to run riot, take over
whole plots and worse, neighbours plots. We are fighting a constant battle
against them from a neighbours plot at the moment. Worse than couch grass
because I can't spray them without killing his plants too.
How do you all keep them where they are planted?
--
Regards. Bob Hobden.
Posted to this Newsgroup from the W of London, UK