Ed from Fuquay Varina, Nc writes
If not what product will.
Grass Out Max (Clethodim Herbicide) is designed specifically for killing grassy weeds including fescue in ornamental areas without harming desirable shrubs and roses, it is not for use in lawns at all. Since poa annua is so closely related to cool seasons grasses, like fescue and ryegrass, there are not any herbicides that can be applied to kill the poa without also harming the fescue and ryegrass. We do have one product called Prograss EC Herbicide, but it is very expensive. We recommend spot treating the poa annua with a glyphosate product and then just reseeding those areas. Unfortunately, we do not carry any herbicides that are labeled to kill zoysia in a tall fescue lawn. You will either need to spot-treat the unwanted grasses with a glyphosate product like Roundup Quik Pro and reseed. Fusilade II can be used to get rid of Bermuda grass in tall fescue. You will also need to add a nonionic surfactant for best results. Please be advised that Bermuda grass is extremely difficult to control and you will likely need to make several applications. With Fusilade II Herbicide, it is recommended to apply the product in the early morning hours or late evening hours when the temperatures are below 85 degrees Fahrenheit.
Answer last updated on: 03/10/2024
