Q.raspberries
our raspberry patch produced very little fruit this year …the berries are small and many of the buds did not grow into berries …we fertilize and water the canes … we prune dead canes and we have put black covering in the patch to prevent weeds …the leaves looks good ….previous years we have had bountiful crops

Certified GKH Gardening Expert
This has been a difficult growing season for gardeners. If you are getting flowers with no fruit, this is typically a pollination issue. These articles may help:
https://www.gardeningknowhow.com/gardening-how-to/insect-pollination-process.htm
https://www.gardeningknowhow.com/flower/creating-a-pollinator-garden.htm
If you are not seeing any flowers, then it is likely due to a lack of phosphorus in the soil. This can be remedied by using a phosphorus rich fertilizer or adding bone meal to the soil around your plants.