DIYbanter - View Single Post

dpb[_3_]

On 2/14/2020 9:57 PM, wrote:
....

Roundup is still just a defoliant more than a systemic herbicide. That
is why you can spray it on your dormant zoysia grass in the winter.

"Glyphosate is a broad-spectrum systemic herbicide and crop desiccant
which acts by inhibiting the plant enzyme
5-enolpyruvylshikimate-3-phosphate synthase. ... Once absorbed,
glyphosate moves quickly through the plant and accumulates in areas of
active growth called meristems. ..."

The only reason it doesn't kill zoysia dead is that it's dormant at the
time.

Similar issues with application at times is hot and dry and stuff isn't
actively growing.

Like most other herbicides, against well-established wood brush it will
undoubtedly take multiple applications or combinations to kill all the
roots so it won't re-establish.

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