I would say it's the demand for higher and higher quality and the costs associated with that. Just the other day, my dad was trying to figure out what nutrients to feed our trees. He was, like, geez, it's so complicated; in the past you had three or four sprays, and you went out and did it, but now you have 20 different sprays that are specific to different times and specific to different pests.
It's just becoming a lot more complicated and costly.