Couple of possibilities from the photos. Any sign of insects on the undersides of the leaves - specifically spider mites? Second possibility is a fungus disease called Gray Leaf Spot. Can't tell for sure on the tomato pics even when I blow up the photo but the pea leaves sure look like it.

So Google pics (GoogleImages) of both possibilities to compare to your plants. Different treatments for both.

Hope this helps some.

Dave

Thanks for the reply, Dave.

I Googled "Gray Leaf Spot," but it looks different to my eye. My issue is yellow spotting, while the Gray Leaf Spot seems to result in small, circular, brown spots.

I'll take a look at the undersides of the leaves when I get home. I remember seeing, in previous seasons, signs of webbing among some of the marigolds I plant around my tomatoes as deterrent to the Tomato Hornworm.

I will say that the sweet pea damage I posted does look very different than what I'm seeing on my tomatoes, so I probably shouldn't confuse the two in the same question.

Thanks.

-Ray