Originally Posted by Uncle Ben

Still standing after all these years. If there was a toxicity issue, my plants would have taken the hit first. Because of the application and plant's root tip response, copper ions are not translocated thru the plant.

Cut 'em. I'll repeat what I've recommended for years - when you upcan pop the rootball out and using a razor or very sharp knife score the roots vertically. IOW, starting at the top of the rootball, plunge the razor about 1/2" deep and draw down to the bottom making sure you cut thru the roots at the bottom. Rotate the ball so that you do this about 4 times around the perimeter of the rootball.

And before you ask, no, you won't get root rot. Yes, you will get profuse root branching behind the cuts. This a very common practice in the commercial nursery trade.

Those pots work fine unless the RH is real high. I have seen roots continue to grow thru and below the pot under humid greenhouse conditions.

De nada.

Tio Bendejo