Partial fruit on red raspberries
For more than 10 years, I had very productive canes in the San Francisco bay area. When they stopped producing, I dug them up (probably didn't get all the old canes) and planted new canes. I planted new canes, purchased from various nurseries, for several years now and in a couple of locations in my urban lot. In all but one location, the berries produced are few, and the fruit itself has only a few globes of the berry rather than a full cone of globes. Suggestions as to what I should look for, test, etc. would be greatly appreciated. I'm not much of a gardener by am an engineer so I'm willing to read, but I don't know what to look for.