Tom from Hatford, Ct writes
Dimension 2EW is a pre-emergent and an early post-emergent for different weeds. This should be used before the weeds emergence and for early emergence of others. The Hi-Yield 2, 4-D Selective Weed Killer is a post emergent. This means it is used when the weeds have already emerged. Using them together will not effective.
Answer last updated on: 06/09/2014