Q4 Plus Turf Herbicide is not labeled to be safely applied to St. Augustine lawns. Blindside WDG and Atrazine are both labeled for St. Augustine Lawns.
Please view our St. Augustine Lawn Guide and Lawn Care Guides for more information.
Neither a MSO nor a non ionic surfactant are recommended to be tank mixed with Q4 Plus Turf Herbicide
Per the product label, Certain spray tank additives such as surfactants may reduce the selectivity on the turfgrass. Use adjuvants only when your experience indicates that the tank mixture will not result in objectionable turf injury.
Q4 Plus Turf Herbicide can only be applied as a broadcast twice a year with 30 days in between each application. Spot treatments when weeds are actively growing in Spring and Summer can help with sparse weed control or as a follow up application to a broadcast on an “as needed” basis.
Whether you are doing broadcast or spot treatment applications, be sure you do not exceed the maximum rate allowed per calendar for bermuda which is 5 to 7 pints/per acre or 1.8 fl oz to 2.6 fl oz per 1000 sq ft.
Spot treatments for bermuda are applied at the rate of 1.84 fl to 2.57 fl oz in 1 gallon of water per 1000 sq ft.
Keep in mind, weed control can vary depending on the specific weeds being targeted, if they are young vs mature weeds, the density of weed infestations and also weather/soil conditions.
Acclaim Extra Selective Herbicide is an option to use on cool season turfgrasses for it.
We would not recommend doing so as Q4 Plus has Quinclorac in it, which is the active ingredient for Drive XLR8. Adding too much can cause injury to your lawn.
We recommend waiting about two weeks or more after applying Q4 Plus Turf Herbicide before you aerate or dethatch the lawn. This is to allow enough time for the target plants to die completely before you dig up their roots.
The application rate of Q4 Plus Turf Herbicide varies depending on what type of truf grass you have. Cool Season Grasses: 2.6 - 3 oz. per 1,000 sq. ft. (7 - 8 pints per acre) Warm Season Grasses: 1.8 - 2.6 oz. per 1,000 sq. ft. (5 - 7 pints per acre)
Repeat treatments can be done at 30 days but you are limited to 2 broadcast applications a year but you can spot treat up to the max rate per area per year as directed on the product label.
No, Q4 Plus Turf Herbicide is not labeled for Sandburs. Let us know what kind of grass you have, how much area you need to treat and we'll try to find a product that will work for your needs, call us 866-581-7378 or email us at [email protected].
Q4 Plus Turf Herbicide is not labeled for sandburs. You may want to consider a product like Acclaim Extra instead.
Q4 Plus Turf Herbicide is not labeled for treating crowfoot.
We recommend that you perform a a jar test before mixing Q4 Plus Turf Herbicide with any other herbicide products to ensure that everything mixes well and there is no clumping or separating.
Q4 Plus Turf Herbicide is not labeled for use on bahiagrass or other paspalum grasses. Please provide the targeted weeds for an alternate recommendation. We can also be reached at 866-581-7378 M-F 9-5 PM EST.
Yes, Q4 Plus Turf Herbicide can be applied at the same time as 21-0-7 fertilizer. As always be sure you are applying these products during the cooler times of the day when temps are below 85 degrees.
We would suggest doing a compatibility test before tank mixinging Q4 Plus Turf Herbicide & Fusilade Herbicide together. Using a small jar, mix both products according the tank mixing instructions on the more restrictive labeling of the two (Fusilade II product label) and look for separation and clumping.
Fusilade II is labeled to be used on Zoysiagrass but states it is not for use on home lawns. Q4 is labeled to control both bermudagrass and zoysiagrass and temporary discoloration should be expected and a test application should be done and wait 30 days before treating the entire yard. We recommend reviewing the Bermudagrass and Zoysiagrass Advisements in Table 3 on the Q4 product label.
We do not recommend applying Q4 Plus Turf Herbicide to buffalograss since there is no mention of tolerability on the product label. We would recommend contacting your local cooperative extension office to see what you can use in your desired turf to kill buffalograss.
Q4 Plus Turf Herbicide is rainfast within 24 hours after application.
Q4 Plus Turf Herbicide can only be applied as a broadcast twice a year with 30 days in between each application. You can spot treat if needed throughout the year staying below max labeled rates for your turf type.
Q4 Plus Turf Herbicide can be applied at the same time as a fertilizer. As always be sure you are applying these products during the cooler times of the day when temps are below 85 degrees.
Q4 Plus Turf Herbicide is not labeled for use on blue star turf. Please provide the targeted weeds for an alternate recommendation.