Answer: You can leave the blossoms alone. If your tree is strong enough to develop apples, it will. If not, the fruit will abort when it is one or two inches in diameter. Most apple trees thin themselves in June. If they don't drop immature apples and there are 4-5 in a cluster, you can thin them out to 1-2 fruits. This will allow the remaining fruits to become larger and mature earlier. I hope your new trees reward you with a few apples.
Best wishes with your landscape!
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