Victor from Lovettsville, Va writes
Good Evening Victor,
Thank you for your interest with Do My Own.com, we are happy to assist you today!
Although manufacturers say as long as you are not applying either product during the heat of the day, you can use SpeedZone the same day as Tenacity Herbicide. Just allow areas to dry between treatments. It would be best if you tank mix Tenacity with other herbicides by testing on a small basis for compatibility, safety and efficacy before treating large areas. See product labels for directions and precautions.
Answer last updated on: 03/29/2020