I find this on the crabapple:
Pruning should be completed before early June. By mid-June to early July, flower buds for the next season are beginning to form in most crabapples. Pruning after July will reduce floral display and fruiting for the following year.
We moved in in May. There were no blossums and no sign of any pruning. The fruit was there and if anything, it grew larger. A few grew withered and puckered up like very small apples. Maybe they were there from the year before (doughtful) but seems they always were hanging as pictured and still are.
The tree is probably 20' tall.
I suppose the spring blossums will tell me something. I want to prune away much brush before winter is finished. Here's a couple photos taken lately.
Definitely not Aronia sp., with that large a tree form - and especially not with that purplish tinge to the foliage.
This is likely a pink to red flowered crabapple with exceptionally persistent fruit - which is what many selections of this species are made for, right after disease resistance.
If there is an insatiable desire to apply sharp tools, look to remove crossing branches; obviously dead wood; and branches growing toward the interior of the plant. Otherwise, leave it alone until after flowering. Then, apply your shears to direct new growth towards a form pleasing to your eye.