I think he might be referring to the fact that Organic Standards don't allow for transgenic modification of varieties, or what is commonly know as GMOs, due to

I think he might be referring to the fact that Organic Standards don't allow for transgenic modification of varieties, or what is commonly know as GMOs, due to safety concerns On the other hand, they allow for varieties made by using radiation induced mutations, which is way less precise and much less tested. Basically its an ideological position and not based on the scientific consensus.