It's possible to use plastic wrap as a hay cover, but it is typically a better option for tightly baled, high-moisture hay, such as silage, rather than dry hay. Plastic wrap creates an airtight seal, which helps preserve the moisture content and fermentation process in silage, but for dry hay, it can trap moisture and lead to mold growth if not applied correctly.
Plastic wrap can be more challenging to apply evenly and securely over large stacks of dry hay, increasing the risk of damage or inefficiency. While it can offer some protection, plastic wrap is generally not the best option for covering dry hay, where breathable materials or traditional tarps may be more effective.
