Q4 Plus Turf Herbicide can be applied as 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.
The shelf life of Q4 Plus Turf Herbicide is 3-5 years if stored in a room temperature setting. This product should be kept out of extreme temperatures, which are under 35 degrees Fahrenheit and over 90 degrees Fahrenheit.
Q4 Plus Turf Herbicide increases the carbon dioxide in the weed resulting in death. Wild violets will require more than one application to get control according to the product label.
Q4 Plus Turf Herbicide should be mixed at at 2.5 oz. per gallon of water per 1000 sq. ft. to treat Virginia buttonweed.
Q4 Plus Turf Herbicide is a post-emergent herbicide, so it will only be effective on existing plants that are actively growing. You should not use any post-emergent herbicides during winter temperatures or when weeds are dormant.
Q4 Plus Turf Herbicide should be stored in a cool dry place and not exposed to extreme temperatures, i.e. above 90 and below freezing. If it was stored in less than optimal conditions, and you are noticing that it has separated in the bottle and with shaking will not go back into solution or it is not as effective, we would recommend replacing it.
Q4 Plus Turf Herbicide has no restriction for when you can lime after application.
Per the manufacturer, Q4 Plus Turf Herbicide is not labeled for use on pastures. It is recommended that you wait at least 30 days before they can return to the area.
Turf species listed on the product label can be seeded one week after application of Q4 Plus Turf Herbicide.
The mixing ratio of Q4 Plus Turf Herbicide will vary according to what type of turf grass is in the area that is being treated. For cool season grasses, the amount is 7- 8 pints per acre (2.6 to 3.0 oz per 1000 sq. ft). For warm season grasses you use 5-7 pints per acre (1.8 to 2.6 oz per 1000 sq.ft.).
Yes, we recommend applying Q4 Plus Turf Herbicide in either early morning or late evening when the temperatures are at their lowest.
No you cannot tank mix Q4 Plus Turf Herbicide with another product like Speedzone which also contains 2,4-D.
The amount of Q4 Plus Turf Herbicide you will need will depend on what and where you will be treating. The product label suggests using between 1.8-2.6 fl oz per one gallon to treat 1000 sq. feet.
We do not have a post-emergent herbicide that will contain all 4 of the active ingredients you mentioned. Without knowing what weeds are being targeted, it is hard to make a recommendation. In most cases, tank mixing two herbicides is allowed if permitted on the product labels. You would follow the most restrictive label in regards to tank mixing. Q4 Plus tends to be the most popular for broadleaf weed control in cool-season turf. Here are some other options.
QuickSilver Herbicide contains Carfentrazone-ethyl
Ferti-lome Weed Free Zone contains 2,4-D, mecoprop-p, dicamba and carfentrazone-ethyl.
E-2 Herbicide contains 2,4-D, Fluroxpyr, and Dicamba
Q4 Plus contains 2,4-D, Dicamba, Quinclorac and Sulfentrazone
Solitare Herbicide contains Quinclorac & Sulfentrazone.
Yes, Q4 Plus Turf Herbicide is pet safe even if it rains within a day or two of the application, according to the manufacturer.
Q4 is not going to move through the soil and affect other plants that were not directly sprayed with the product. If you have watered the area well and it did not contact others or their roots, they should be fine. The label does state not to apply to ornamental landscape beds. We would recommend contacting the manufacturer directly for timing of when you can apply in that area. PBI Gordon can be reached at 800-821-7925.
Q4 Plus Turf Herbicide will not harm your putting green, as long as the turf is listed as tolerant on the label and you apply when temps are below 80 degrees.
Per the Q4 Plus Turf Herbicide label for warm season grass you will apply 5 - 7 pints per acre.
As for the amount of water the label states the following and varies depending on the type of sprayer:
For Conventional Spray Equipment: 50 to 220 gal/acre
For Low Volume Spray Equipment: Equipment should be calibrated to apply at least 20 gallons per acre
Yes, Q4 Plus Turf Herbicide can be used to control barnyardgrass in a Bermuda lawn.
Per the Q4 label: Application around a cistern or well may result in contanimation of drinking water or ground water.
