There's another crucial aspect to this which is that most orchards you see are absolute monocultures. There's an enormous value in planting a diversity of compa

There's another crucial aspect to this which is that most orchards you see are absolute monocultures. There's an enormous value in planting a diversity of companion crops and staggering species in orchards, and you see a lot less ruin in these types of orchard designs. The problem with monocultures is you have no breaks where competition from other bug species, birds, animals, etc, keeps an ecosystem in balance. So you end up creating this environment where a pest can take off without any resistance. This is usually not done out of a desire to maximize yields. Farmers don't want to take up space with trees that are 'not producing'. But the other way to look at it is that those other plants and trees are producing a ton of value, they're just not producing a crop per se. That said, many companion plants can also be valuable crops in their own right.