Richard from Union, Sc writes
I am in South Carolina. I have used quinclorac, with and without a surfactant, with little success . I have bermuda grass and pets. Rain is irregular here and I have three acres to treat. Can you suggest an effective alternate that addresses the crabgrass and is safe for the bermuda and pets? If a premergent is suggested for next season, please make a sugestion also. Thank you
Quinclorac is a great active to use and it must be used with a methylated seed oil surfactant such as Duo Stick for best results. With QuinKill max that you purchased, the timing is key though, under certain conditions, application of QuinKill made to annual grasses at 2 to 4 tiller may not provide complete control. A sequential application will be required for grass control in these situations. Optimum control is achieved when applications of QuinKill + methylated seed oil are applied either before second tiller or as weed grasses mature. What rate was it applied it? Do you know what tiller stage the crabgrass was at? How many applications have been made at what timing between them? What type of surfactant was used? Q is a slow kill and can take up to 6 weeks to kill. Q4 is an alternative that can kill faster and Dimension as a pre-emergent is good, it also has early post emergent crabgrass control.
Answer last updated on: 07/03/2018
