Steven from Kissimmee, Fl writes
We are not exactly sure what types of oil concentrates that you are referring to or what you are treating. We can tell you that some herbicides recommend adding a surfactant or a crop oil while others do not. Please refer to the product labels of the specific products for more detailed application instructions. You may also contact us at 866.581.7378 to speak to one of our experts for assitance.
Answer last updated on: 01/13/2014