Something is going on with my tomatoes. I have one tomato plant in an earthbox along with a zucchini plant and the leaves of the tomato have yellow spots and the zucchini has white spots. I was told it might be mosaic virus and if it is I know I have to get rid of the plants so I want to be sure. I am attaching pictures. So far the fruit from both plants look fine and taste great but now I have a couple of tomato that look funny and one zucchini that is bumpy. I hope you can tell me for sure if it is the virus or just a nutrient deficiency. Thanks in advance, Margie.
Here are some pictures.

@jmjdickey

I'll try to help here in a moment.

Where do you live roughly and what variety of tomato are you growing.

Ok, what I'm going to say is based on experience not books, I know there's argument/ controversy about this.

You have early blight!
That's scarred tomato doesn't like like the tell tale blight rotted fruit...

The leaf screams early blight to me,
It's tough to deal with, I plant my tomatoes 6 weeks after the local competition.
It helps me avoid the first round of blight and that helps with the late blight for me.
Treatment isn't all that effective, but there's hope, the main thing I can tell you is that it's very easy to spread!

YOU are the most likely way this stuff will spread!
Clean tools
Clean tools
Clean tools!

If you walk around the plants much, your boots will spread it, especially if it muddy! And of course reaching down into the plant to pick fruit is a big one and hard to avoid!
Dispose of any affected material the best you can, get it far away!

If you plan to grow tomatoes all season you need to read up and take careful action.
Best of luck

Thanks so much. I am in Tucson, Arizona and we just broke 100 degrees yesterday so that isn't going to help. I just watered and covered them because the heat is so intense. They are in a spot where they get afternoon shade but they just aren't doing well. Both plants are in the same Earthbox so I can't separate them. The tomato has stopped growing too and I don't see any new fruits growing. It was full of tomatoes and some are fine and ripening but no new buds. I will try and save it but it looks bad.
Thanks again for the response.

If it is/was a blight, you will need to ditch the soil in your Earth Box (you can use it to amend other beds though) and clean the box before planting it again. Btw, tomatoes do stop setting fruit when the temperatures get too hot, so that might have been a contributing factor. Daytime temps over 100 and/or nighttime temps over 70 or so, I think is about when mine stop setting fruit.

So, next year, start your tomatoes earlier so you'll get a good harvest before they give up in the heat.

Thank you, Elaine.

I had the Master Gardners at the U of A tell me that it is mosaic virus and now I have to dump the plants