Instead of pesticides they use very fertile soil, sometimes spray soap/water mixture... and that's about it. They use electric wire that they can move around to allow the animals to graze in different areas, allowing the rest to grow back more fertile than before.
Great Pyrenees dogs guard the chickens, goats and pigs
Mule guards the cattleIt was these friends that motivated me towards living a farm life 2 years ago; after visiting them on the dairy farm they lived and worked on. I hope the next area we move to will have more organic farms I could intern on, because that kind of hard work is the only kind that really makes sense to me.