Travis from Westminster, Md writes
It would be best to make separate application for the Trimec 992, Prodiamine 65 WDG and the Quicksilver. Generally you don't want to mix pre- and post-emergent products as it can change their formulations. You could however do a jar mix of the Trimec 992 and the Quicksilver and see if they emulsify and could be sprayed together since they are both post emergents.
Answer last updated on: 04/30/2018