Knowing trees, I understand the meaning of patience. Knowing grass, I can appreciate persistence.  ~ Hal Borland

One of the interesting patterns in the fields is the yellow, pesticide treated grass v. the natural grass. In the orchards, there is a clear spray line between them, and that's what you see here.  

I've included a head-level picture here also so you can see the lines better, but I liked the ground-level picture more.