Share 'Treated wood issues'

My husband and I just bought a house, partly because of the grapes growing on the trellises near the garage. I didn't know anything about the wood used until we were making a compost bin and realized that we couldn't use treated wood. The trellis (which we've replaced) was made of treated wood and as we were taking it down, we saw that the grapevines had nodes of roots growing into the treated ...