John,
</font><font color="blue" class="small">( I sprayed Trimec about two weeks ago and all the leaves on the broad leaf weeds curled shortly after application. However, they are still green; they look sick but not dead. )</font>
Saw the same thing here - particularly on the initial application to the front lawn. I think the lite rain we had the night I sprayed washed it off the broadleafs more than the dandilions or something - the
Broadleaf Plantain on the front lawn started to curl within a few hours of application but seemed to survive the initial spraying better than the dandilions, which eventually have withered up and turned completely brown/red.
</font><font color="blue" class="small">( they were going to recover but your comments on how long it takes to kill them gives me hope. )</font>
On the second spraying I did, where it didn't rain until at least several days afterwards, the broadleaf plantain seems to dying more rapidly than than it did on the initial treatment on the front lawn.
One thing I need to verify is that I think that with broadleaf plantain, when the stems that protrude from the center start turning red, it's dying - I don't think that the red stems are the natural condition of it in a healthy state ....... but like I said I need to look at some in the unsprayed areas of my yard to be sure.