On Oct 5, 12:45 am, Charles wrote:

I've read of it being done in the Pacific Northwest. The idea is to
kill the broad leaf plants to let the conifers get started. I guess it
works if done at the proper dosage. The main tree crop there is, or
was back when I knew anything about it, Douglas fir. It is a fire
species, normally grows after a fire and needs full sun.

I doubt in the itinerant and seasonal nature of the industry, there
will be medical records in the British Isles that can be linked to the
use of this stuff and of course in the USA no-one in that line of work
could afford medical attention.

Maybe Canadian records could reveal the extent of herbicide poisoning
among forest workers?