From the Topics in Subtropics blog :: July 5, 2013 It is not always easy to kill weeds with herbicides for several reasons, but if you apply the right material at the right time to susceptible weeds you expect control. But you should never assume it, because resistant weeds rely on this assumption.
I'm at my desk today catching up (slightly) on things that accumulated during the past few months when it seemed like I was in meetings more than I was anywhere else.
While both horseweed and hairy fleabane have been here since farming began in the region, it's only since about 2003 that they have become such an obvious problem, particularly in tree and vine systems and non-crop areas.
