Hi-Yield 2, 4 - D Selective Weed Killer is not labeled for watermeal. Watermeal is a very difficult weed to get rid of and the only product we are aware of that will control watermeal is Sonar Aquatic Herbicide. You may want to reach out to your local cooperative extension office to see if they have any recommendations on what has worked for others in your area.
Avenue South Broadleaf Herbicide for Turfgrass is labeled for dollar weed in Floratam St. Augustine grass & Hi-Yield Atrazine Weed Killer is labeled for St.Augustine but not floratam specifically. We recommend treating an inconspicuous area first.
Yes, Hi-Yield 2, 4-D Selective Weed Killer is safe to use on a Bermuda lawn. Please refer to the product label for complete instructions.
While the product label for Hi-Yield 2,4-D selective Weed Killer states that St Augustine grass may be injured by sprays, it is not really labeled to be used for controlling it as it is onlya broadleaf weed killer. Bermuda grass is so closely related to St. Augustine grass that there is nothing that will remove St. Augustine from Bermuda and not hurt the Bermuda as well. In your situation, it is recommended to spot treat the St. Augustine with a non-selective glyphosate product and kill it directly, and then replant Bermuda in those areas.
Roundup QuikPro is always an effective and convenient choice
We would not recommend spraying Hi - Yield 2, 4 - D Selective Weed Killer on a Blue Rug Juniper at all as it could damage it. You should avoid any contact with desirable plants when using.