Ask corn growers what their No. 1 weed ... a pre application before emergence equals one growing point versus a post application when weeds have many growing points Preserves yield potential ...

Determine your post-herbicide application options. Consider pairing a residual herbicide with a post-emergence herbicide ... which can prevent good spray coverage, according to University of ...

There are two main types of weed and feed: pre-emergent, which kills weed seeds before they germinate, and post-emergent ... 60 and 90 degrees. If you spray weed and feed too early in the spring ...