You have to disclose any citations, encounters with law enforcement, etc on your scholarship application. For minor infractions that occurred prior to entrance into a unit, you will be fine as long as you're honest up front. You also have to disclose any probations or other school administrative actions on the application. Same general idea applies.
Since you said you plan to join in the fall I assuming you mean as a college program student? If so, your unit's college program application should have the same general questions I referred to above on the scholarship application.