Despite my circuit network usage, I have not tried what you described.

Speaking of Gleba though, I had to cook up some circuitry to not end up wasting too many spores on excess harvesting.

It was pretty hard to do, but it works by
1. The box is a buffer, with the inserter set to unload spoiled first
2. If the amount in the box starts getting too low (changed via constant combinator), start a timer from 0
3. While timer is less than x, let trees harvest fruit
4. While timer is less than y, don't reset the timer (to give fruit time to arrive from the long transport belt)

You can see it in the bottom left and bottom right.