Anyone who likes to eat nutritiously.
And if you value having habitat for the wildlife - well it is a big required read also
http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2009/07/13/MN0218DVJ8.DTL Article details how the small farmer, usually organic, is being told that because there may be a deer or possum crossing his plot of land, he can either watch the middleman business that he was going to sell the produce to then squash the order, or he can dig out the trees, and hedgerows, and start all over.
Here are first three paragraphs -
Dick Peixoto planted hedges of fennel and cilantro around his organic vegetable fields in the Pajaro Valley near Watsonville to harbor beneficial insects, an alternative to pesticides. But he has since ripped out such plants in the name of food safety because his big customers demand sterile buffers around his crops. No vegetation. No water. No WIldlife of any kind.
"I was driving by where a squirrel fed off the end of a field, and so 30 feet in we had to destroy the crop." Peixoto continues: "On one field where a deer walked through and didn't eat anything but jsut walked through, and you could see thee tracks, we ahd to take out 30 feet on each side of the deer tracks nad annihilate the crop."
On the verdant farmland surrounding Monterey Bay, the national maritime sanctuary and one of the world's biological jewels. the scorched earth strategies are being imposed on hundreds of thousands of acres in the quest for antiseptic corps of green.####
ALL THIS IS AN ILL CONCEIVED EFFORT TO AVOID HAVING O157:H7 type of e coli, which probably is more related to industry farming than anything else.