Well, you've got me there Magis.
I should have said a more rapid burn down, which will occur if using 2,4,D. As far as the whole plant(root) dieing faster, then no, that's not correct.
I'm assuming Tennhunter is planting a Rye plot due to a earlier thread where tilling in nitrogen was also discussed. If this is the case and no perennial seeds is in the mix, then IMHO, I would skip the spraying and waiting process altogether.
Instead, I would mow, till, spread the N, till again and sow the Rye right before rain. Either way, the rye will need to be killed next spring (using various methods) and you'd have plenty of time to kill the perennial weeds/grass then.
There's simply not many weeds or grass going to be able to compete with the rye going into fall/winter. And I would rather have a plot ready in about 2 to 3 weeks from now, so the deer harvesting could get under way sooner.
