I've inherited a loganberry bush, and failed to harvest a crop of berries before they shriveled up.
What should I do now? Is there any benefit in picking them anyway? Would that encourage a new crop? Or should I just leave them for the birds?
As the astute comments above point out, leaving the berries on the plant can contribute to the spread of pests and disease. Remove all the fruit, whether or not they are edible. And, the plants will not grow another crop when the dead berries are removed. Another thing to consider is potential seed germination, from unharvested berries that end up on the ground. These can be very annoying. Basically, there are no benefits to leaving the fruit on the plant, but there are several disadvantages.