We are just finishing the pruning our primocane-fruiting raspberries at the Michigan research site.Some plants are cut right to the ground so that they fruit only in the fall. We used loppers to prune our raspberries by hand, making sure to cut at ground level to remove all the low buds. Low buds can produce fruit that is hard to find and can become infested with spotted winged drosophila larvae. We are keeping canes on other plants so that they fruit on the 2nd year floricanes in July in addition to the new primocanes in the fall. This "double cropping" system has been increasing total yields and expanding the fresh market season.
K. Hanson: Tunnel Berries Outreach Coordinator