Is this cherry leaf spot disease?

I planted three Meader bush cherries on May 16th. They seemed healthy at the time, but now they appear to have Cherry Leaf Spot Disease. The pictures are of the plant that has it the worst and which was the first to show symptoms, but the other two also have it to a lesser degree.

So, is this cherry leaf spot or is it something else? What should I do? Do I need to use copper fungicide or are there fungicides that won’t build up in the soil the way copper does?

The plants also don’t seem to have grown much if at all since transplanting and I’m not sure why. The potting mix was 1 Part Miracle Gro Potting Mix, 2 parts peat moss, 2 parts of a peat/perlite mix, and 0.5 parts pine bark mulch. The plants are in 5 gallon fabric pots. They’ve been watered but I haven’t been as consistent about it as I should be and they haven’t received any fertilizer yet. They were in part sun and moved to full sun yesterday.

The majority of damage from those leaves is not from cherry leaf spot. However, on one of the leaves close to the ground, there is a leaf spot on it. Leaf spots are circular. I don’t know for sure what caused the damage on those leaves.

Please see the link from U Penn here for cherry leaf spot.

It is inevitable to get leaf spots on cherry trees if you do not live in an arid area.

Fungicide that is commonly use for it is Myclobutanil. The brand name you can find in stores like Lowe’s or Home Depot is called Immunox by Spectracide.

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