So I just planted my tomatoes last week, and I found these dark spots on my plants?! is this a fungus? should I start spraying them with copper fungicide? or amputating affected leaves? there's no stem lesions though, just these dark splotches. It's been raining here a lot lately, not sure if that has anything to do with it. Here are some pictures, I hope this isn't anything to worry about!! the picture below is the worse dark splotch in the bunch