Pest Impact on Corn Pollination

What happens here

While harvesting, the farmer points out an issue with some of the corn: Japanese beetles have chewed down the silks, leading to incomplete pollination. He explains that each silk is attached to a single kernel, so damaged silks result in undeveloped (flat) kernels, making the ear 'spotty.' Although these ears are not ideal for human consumption, they are perfectly suitable as goat feed. He continues cutting the corn stalks, accumulating a large pile.

Goal: Explain pest damage and its effect on corn quality for different uses.