Hello Jane , I have been looking at the green bumps on your olive and they look so similar to my new bumps on my olive tree ! I can’t help but wonder what ever happened to the bumps and to the tree ? No one else’s diseased pictures of olive trees resemble yours and mine ! 😱😭😳 Please if you could help I’d much appreciate it ! Since everyone I have contacted about this matter says what you received for your one answer, olive knot ! I’m praying for a better outcome !!? Thanks so much , Joann G from Sonoma California 😁