Solution to mice in greenhouses: 26.5' X 54' polycarbonate greenhouse showing operational ideas.

This is one of my customer's greenhouse. They purchased built this in the spring of 2023 so this year is their second season. They had serious problems with mice eating their starts so they decided to dig a trench around their greenhouse and will be placing screen under ground to keep the mice from digging into their structure. This is one of those considerations that should be thought about prior to completing the construction of any greenhouse. I've personally never placed such a screen, but it seems to be a reasonable solution. Most of my mice come from digging holes into the greenhouse right under the polycarbonate.