James from Chicago writes
Yes, you can potentially add a pre-emergent herbicide to RoundUp QuikPro. Be sure you are using a product that is labeled for use in the area(s) you are treating and that you activate your pre-emergent with watering after about 24 hours. Please view our Pre Emergent Guide for more information on Spring and Fall pre-emergents.
Answer last updated on: 05/24/2021