Aphids transmit several viruses to raspberries. The main vector of raspberry mosaic complex in North America is the large raspberry aphid (Amphorophora agathonica).
Raspberry leaf curl virus is transmitted by the small raspberry aphid (Aphis rubicola).
Aphids may also cause the petioles of leaves to twist and curl when they feed on them.
More information:
- Raspberry Aphids – (Scottish Crop Research Institute)
Use these resources if you need additional help with diagnosis and to find solutions to your problem.