What’s up guys I’m new with Japanese maples I have 2 bloodgood acers planted in the ground in training and they were doing really good pushed a bunch of growth in early spring and they started filling in really nice but about 2-3 weeks ago they started getting these weird dry yellowish spots on the leaves and it dropped some leaves can anyone help me with this? Is it something as simple as over/under watering? I should mention I fertilized em like 3 weeks before they started doing that here are a couple of pictures. Appreciate any help in advance thanks!
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