On Jan 28, 3:09 pm, "Red" wrote:
On Jan 28, 4:46 pm, Scott Simpson wrote:

I cut them to the ground, put RoundUp on them, and they still grow back! How
do I kill these darn things? Thank you.Roundup is a selective herbicide and doesn't kill everything. Try a
weed killer containing 2-4-D full strength from the bottle on those
cut back stubs.

2-4-D will kill top growth. Doesn't do much for killing roots except
if you keep reapplying it will eventually starve the roots - read
_after several years_.

I am unfamiliar with birds of paradise but if round-up takes a 10 or
so days to kill the top growth then it is also killing the roots. May
require reapplication over several years to get all of them though.

I have been spraying morning glory in the lawn for 20 years with 2-4-
D and it still occasionally shows up. The real killing success I have
had is with roundup. Trouble there is that it also kills the grass
arund the morning glory.

Same with Canadian Thistle.
Harry K