Answer: Hummingbirds love fuchsia flowers (isn't that one of the reasons we grow them??) but because hummers visit many, many blossoms, they can potentially spread diseases. What you're describing is a virus (Tomato Spotted Wilt) and there is no cure. There really is no practical prevention, either. Plants are either resistant or susceptible, and fuchsia's are susceptible. If you do not destroy the affected plants, hummingbirds will continue to visit and spread the problem to other susceptible plants. Wish I had better news for you!
Glad we were able to help you with your previous question!
Q&A Library Searching Tips