Can CCA treated pine posts be safely used to support espaliered fruit trees?

Question

I am concerned that Arsenic may find its way into the fruit of pear trees grown on a free standing espalier supported by H4 treated pine posts which will be concreted into the soil.

Answer 1

Here's a link Penn State's update on using treated wood: https://extension.psu.edu/environmental-soil-issues-garden-use-of-treated-lumber Here's a link to our article about it - hope this helps: https://www.gardeningknowhow.com/garden-how-to/info/treated-wood-for-gardening.htm