Re: Cucumber mosaic virus?
I had the exact same striping and a couple of shots of good FE took care of it in a few weeks. I am dealing with just over an inch of rain this entire year and my high PH hard water starts to lock up some nutrients. Heavy rain can leach some nutes quickly so it can be a balancing act. I finally figured out how much FE my guavas need and will get a good crop this year.
116F high today, in my yard its a lot cooler (shade and foggers) and there are hummingbirds everywhere trying to stay cool.