copper for disease control

[orgoveg]

I tried this in the proper forum, but I don't know how many go there.

I just picked up and used some copper octanoate spray (copper soap). My understanding is that while it is considered organic, there is concern about build-up in the soil. So, I'm wondering what is the consequence of too much build-up in the soil? I'm thinking that it would destroy beneficial fungi or maybe too much copper would be absorbed into the vegetables. Am I on track?

I had to get a little more aggressive than milk, baking soda, or neem oil. It's been too wet this season.

[TZ -OH6]

Organic tomato farmers spray the stuff weekly during bad years, and vinyards have been using it for decades so it takes quite a while to build up to problem levels. I would worry about liver damage from improperly handling it year after year before I worried about it ruining your soil.

[orgoveg]

TZ-OH6, after I read your reply, I did another search with different terms and finally found something. The following link supports what you said: https://www.das.psu.edu/news/dd200403-03

Thanks for your response. I'm not at all concerned about using it now.