@mushi They don't specifically make the trees grow. They just spit out seeds, which if anything is even worse because if you've ever planted trees before you don't want so many seeds in close proximity. Also, not a population. If anything, just a group that stumbled upon the orchard via the founder effect. Sure, they need food, but Applejack needs crops, so it sucks to be them. It can't always be a win-win situation in life.