Could you clarify? Your title says stem split but your post talks about upper portion of the fruit itself has split. Different situations with different results.

A stem split usually poses no problems and will scab over and heal itself. It is usually caused by inconsistent soil moisture levels that cause it to swell and shrink, swell and split.

But if the fruit itself is split and damaged there really isn't much you can do - leave it for the bugs and bacteria to invade or harvest it and if ripe, cut out the damaged area and eat it. But you can't really store a damaged fruit without molds and bacteria developing and further spreading. If it isn't ripe then you might as well just compost it.

Dave

I should have corrected; it is the fruit itself. ......... it is close to ripe with the stem starting to get woody but not fully ripe. We pulled it and are going to try to cook after removing the damaged part and see how it is.