wrote:
Thanks, I'll try salt.

I can't really spray the leaves with Roundup (wish I could) because
the mulberry is all mixed in with my shrubs and daylilies.

We used it to kill tough weeds in our lawn and landscaping that could
not be dug or pulled out. Put a little roundup in a cup and brush it
onto the leaves of the offending plant/weed. Too much salt can damage
lawn or shrubs, especially acid lovers like azalea or rhododendron.