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Charles from Possum Ridge Alabama writes,

What is "oil concentrate"?

Why is it not in "Hi-Yield" grass killer or why is not stated on front of label that it will be needed? Frustrating to drive one hour home to read label and then find out!


We are not the manufacturer so we cannot comment on why it is not on the label.  When an herbicide calls for oil, it is referring to a surfactant.  Surfactant helps the herbicide stick to the waxy coating of the weeds and lawn you are applying it to.  It improves the effectiveness of herbicides greatly.

Answer last updated on: 07/28/2012

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