Do you know if blackberry bushes don’t like certain metals

Question

My sister-in-law has some blackberry bushes that are against a wire trellis. Where the bush touches the wire, it dies. Not sure what the wire is made of.

Answer 1

I do not think it is metal toxicity at play here. I believe that the foliage die back you are seeing is because metal is a cold conductor. The foliage touching the cold is dying.

For more information on blackberry bushes, please visit the following link:
https://www.gardeningknowhow.com/edible/fruits/blackberries/growing-blackberry-bushes.htm