I really liked this photo because it shows you the weed free rice straw wattle lined up at the bottom of the hill, and it is staked clearly every few feet.  Stakes are advised every 4-5 feet to keep it stable and in place.  There appears to be an erosion control netting above it on the hillside.  Most likely similar to the jute netting that we offer here.  The good thing about the jute netting and the wattle is that small lizards and other small creatures are supposed to be able to pass over or through the material easier without getting stuck and dying.  The biodegradable wattle, while being a more expensive option, is the go-to if you are anywhere near a lake or stream.  The netting on the standard wattle is called photodegradable netting.  It degrades by light, but it has a bit of a thicker net, and since light doesn't hit the bottom portion of the net beneath the wattle, it often remains for a longer period.  We have a lot of farmland out here, and it gets used in that environment just as much as in new construction projects.