JNJ wrote:
1) RoundUp -- In areas where you cannot spray, use a paintbrush to apply it
directly to the leaves.

Roundup will kill anything it touches, right? I'd like to find a spray
that can be broadly applied to large areas without killing all the
grass, trees, or shrubs.

A standard technique to apply roundup selectively is to put on a pair of
long rubber gloves and then cover them with a pair of short cotton
gloves. Then apply the roundup to one of the cotton gloves and run the
glove over the poison ivy/oak. This will apply a nice coat of roundup
to the plant. Care needs to be taken regarding any dripping from the
glove. You can use the second cotton glove to help catch any drips.
This technique is also used for bind weed, morning glory and other nasty
weeds that grow in areas with plants that you don't want to kill. It
was successfully used by a horticulturist at Longwood gardens to get
bindweed out of his asparagus bed.

With poison ivy, the leaves are waxy and are difficult to kill. Also,
if the poison ivy has grown to the top of nearby trees, it is even
harder to kill. The standard recommendation is to cut off the top part
of the vine, say above 3 or 4 feet. Then apply roundup thoroughly to the
lower leaves.

I was looking at the label of the newer roundup that "kills weeds in 24
hours" and it is just the old roundup applied at twice the old rate. I
always do that anyway on poison ivy.

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