The Bayer Advanced All-In-One Lawn Weed and Crabgrass Killer label states that you should not mow for 1-2 days after an application.
Each hose end sprayer is different. You have to find the correct usage rate for Bayer Advanced All-In-One Lawn Weed and Crabgrass Killer for your needs and then follow the hose end sprayer directions for setting the dial to that particular usage rate. For instance, if you have Zoysia you will need to use the setting on your hose end sprayer that will allow the usage rate of 3.5 fl oz of product per gallon of water.
Northern Lawns: Fescue – 1 1/2 fl. oz. / gallon of water covers 500 sq. ft.
Buffalograss, Kentucky Bluegrass, Perennial Ryegrass – 2 1/2 fl. oz. / gallon of water covers 500 sq. ft.
Southern Lawns: Bermuda, Zoysia – 3 1/2 fl. oz. / gallon of water covers 500 sq. ft.
No, the Bayer Advanced All-In-One Lawn Weed and Crabgrass Killer specifically states on the product label not to apply to centipedegrass
You should not apply Bayer Advanced All-in-One Lawn Weed and Crabgrass Killer to newly seeded areas until after the fourth mowing. Cutting new seedlings before they are established - plus herbicide application - puts extreme stress on the seedling turf and will injure or kill it.
Yes, Bayer Advanced All-In-One Lawn Weed and Crabgrass Killer is labeled to treat goathead/sandbur. You will apply 3.2 oz. per gallon of water per 500 sq. ft.
Bayer Advanced All-In-One Lawn Weed and Crabgrass Killer is labeled to be applied to established Zoysia as directed to target weeds and not injure the desired turf.
You should avoid applications of Bayer Advanced All-In-One Lawn Weed and Crabgrass Killer on shrubs, ornamentals/flowers and trees. It should be applied only to listed established turfgrass for weed control.
New plants and grass may be planted 4 weeks after application of Bayer Advanced All-In-One Lawn Weed and Crabgrass Killer.
Bayer Advanced All-In-One Lawn Weed and Crabgrass Killer is not labeled to treat dallisgrass.
It would be best to call your local county extension office for when to apply any type of herbicides or insecticides in your area. They would know better than we would since we are not the manufacturer and we live in Georgia. They will know exactly when you should apply it in your specific county.
You can find your local county extension office information here: http://npic.orst.edu/pest/countyext.htm?
Per the product label for Bio Advanced All-In-One Lawn Weed and Crabgrass Killer: Certain hard-to-kill weeds may be retreated in 2 weeks if necessary. If more than 2 applications are needed, spot treat individual weeds
It is recommended to apply when temperatures will be below 90 degrees long enough for the application of Bayer Advanced All-In-One Lawn Weed and Crabgrass Killer to completely dry.
According to the manufacturer, you can apply your fertilizer after your application of Bayer Advanced All-In-One Lawn Weed and Crabgrass Killer has had time to dry completely.
Yes, Bio Advanced All-In-One Lawn Weed and Crabgrass Killer needs to be diluted with water. The amount of product depends on the type of turf you have.
Northern Lawns: Fescue – 1 1/2 fl oz/gallon of water covers 500 sq. ft.
Buffalograss, Kentucky Bluegrass, Perennial Ryegrass – 2 1/2 fl oz/gallon of water covers 500 sq. ft.
Southern Lawns: Bermuda, Zoysia – 3 1/2 fl oz/gallon of water covers 500 sq. ft.
The manufacturer recommends applying Bayer Advanced All-In-One Lawn Weed and Crabgrass Killer in calm weather when rain is not expected for the next 24 hours.
Bayer Advanced All-In-One Lawn Weed and Crabgrass Killer can be applied to a newly seeded lawn after the fourth mowing. Bare spots may be seeded 4 weeks after application.
Bayer Advanced All-In-One Lawn Weed and Crabgrass Killer should be applied on Bermuda lawns when the temperatures do not exceed 85 degrees so there is no turf injury per the manufacturer. If your temperatures reach higher than 85 degrees during the day, you will need to apply in the morning or evening when it is cooler.
Unfortunately once Bayer Advanced All-In-One Lawn Weed and Crabgrass Killer (or any other herbicide) has been applied to a lawn, there is not much that can be done if it was used on a turf type that is not tolerant to the chemical. If the application you made was not heavy enough to completely kill the St. Augustine in your lawn, it will likely be stunted for a bit and will take several weeks for it to bounce back if it is able to. We would suggest overseeding/sodding in areas where the most damage occurred to encourage new grass growth in those areas. You may be able to fertilize the lawn and help with the overal health of the grass, but overall at this point it is a waiting game to see how badly it was damaged.