Here's a thread that you may find interesting
https://www.backyardchickens.com/t/990759/chickens-in-permaculture
It's pretty much what I'm having to do in order to certify my parents land to go completely organic. There are some fields that are, some halfway there, and some that might not ever make certification. It's a grueling process... I should update the thread; we've done a lot of work this summer
In short, it takes 3 years of NO CHEMICAL application to a field in order to certify it organic. The you can begin selling the crops, grown organically, as "certified organic". But it can take way more than just 3 years to fix the soil.
That's ORGANIC, fixing the soil so that it's healthy and full of nutrients and defenses, much like the plants and even our bodies. The soil is a huge organism, a VERY crucial organism, and its been damaged almost beyond repair.
But the work is worth it. You can taste it, you can feel it just being better for you... Like a homegrown tomato from the garden just tastes and looks so much better than the carbon copy tasteless tomato at the store.
@Free Spirit, our trick for borers is prevention. The soil has to be ready for attack in spring, as borers emerge from the soil. We use nematodes to start with, and if we dint call in the right beneficials and do start to see damage, we go straight to Azamax, which is Azadirachtin, from the Neem oil. It's super potent and risk if hurting beneficial predators, so we use it only when necessary, and try to keep it from hitting the soil.
I do use BT, though. It helps control other larvae, especially flies and gnats.... You'd probably like this site

I even left it on "nematodes"
http://www.arbico-organics.com/category/beneficial-nematodes
The last thing I wanted to mention was the alfalfa that gets sold to the dairies.. . ok, the seed was GM seed. Alfalfa reseeds itself, and these fields are mostly 10+ years old... Do the math, if we have used organic practice on those fields for 10+ years, and never reseeded, then those fields are "certifiable" as organic. And the organic hay going to the organic dairy is indeed used to produce "certified" organic milk. NOT non GMO, but organic
