I painted all corn cobs with an oil chili mix after the first racoon attac. I had only few plants so not a great deal. No attac since then Might be worth a try?
I've tried that in the past, but it easily washes off In rain and requires that a recoon tries to eat your corn in the first place. In my experience it is not that helpful because they still break the stalks and tear off the cobs before trying to eat them before being discouraged, so that still leaves broken plants and cobs torn to shreds. Not a solution for me. But hey if it works for your then that's good.
We had a really warm spring this year and now it is summer like in July since some weeks. I think at least there must be some variation these volunteers as only these 2 are flowering. Most of them are smaller and no flower buds so far. The only drawback are the closed anther cones. I have many seedlings in my greenhouse from last year volunteers. I hope to find some plants with more open flowers, more suitable for allogamous pollination.
Location: Lueneburg, Northern Germany, Europe Zone 7b