If you can be sure the compost will get to and hold temperatures in the 135 to 145 degree range for several days you can compost plants afflicted with Powdery Mildew, because the spores of that disease are killed by those temperatures. Septoria Leaf spot is spread by spores in the seeds from affected plants, so composting the fruit from affected plants is not a good idea.

I think it is a reasonable concern. Pale fresh growth and newly planted... Paying attention and catching something early that may be easily resolved. Could be iron deficient. Overwatering...? Does nj stand for NewJersey? We've had some odd weather. Hot days, cool nights. Overcast for a few days and no rain. Rain predicted all day today, but no rain. Humid and zero wind. I potted some 'hobo' extras and getting similar looking pale centers. I've not watered at all but they are damp... (i'm not a container gardener at all but had some extras i thought i'd try) I realize you are well planted in soil. I think they will bounce back next week but if it gets worse, hold off on any water and maybe foliar feed. If they keep turning pale, more than now, i might look into iron deficient. -just a thought and i am far from many others in knowledge...but just noticing similar on a few of mine...

No but our weather has been insane out here. I wouldn't be a bit surprised if it was because of the weather. You have really eased my mind. Thank you so much. Jonna

Doesn't look like disease. More likely environmental -- ran short of of water. Perhaps soil went a bit too dry; or a hotter than usual day; or windy?