"ctlady" wrote:

It's true that RoundUp should be used on the plant when its leaves are
out in full. But, you can also just cut the vines down to ground
level and pull the rest of them out of the ground. Getting rid of the
underground roots is the best way to keep it from growing back. If
you are allergic to poison ivy, get somebody else to do it or else use
a pair of good work gloves and keep your arms well covered. Ditto for
the brambles.

Roundup is only temporary. Pulling weeds is only temporary. Unless one
cultivates that land to grow something else, like a lawn and/or flower beds,
or otherwise covers it with some impermeable matter such as paving then it
won't be too very long after the pulling and/or defoliating that the kinds
of offending vegetation that originally established itself will reestablish
itself, and probably with a vengence now that the ground is somewhat broken
up. Unless one has some use in mind for that land then they may as well
leave it as is... at least the critters can enjoy it... poison ivy and
brambles are not necessarily a bad thing, not if you're a song bird, a
rabbit, or a chipmunk.