Will Surmount Kill Mesquite?

Surmount will kill both using a 1% solution plus a 0.25% surfactant. Spray with a fine fog/mist, not drops. Cactus has better results spraying in the fall. You can shred or disc the cactus then spray it.

What herbicide kills mesquite?

We recommend using a selective herbicide like Dicamba Plus 2,4-D to kill mesquite. There are two methods we suggest to treat the mesquite, either via stem spray or leaf spray. You will have to cut the tree down to the stump and then apply the Dicamba Plus 2,4-D Herbicide directly to the stem.

How do you kill a mesquite tree?

The best way to kill large bush sized or tree sized mesquites is to prune back smaller branches until you reach the main trunk or basal stems of the tree. Then, cut down the mesquite to the stump and apply a strong tree killing herbicide to the fresh cut within 30 minutes.