Roundup QuikPRO is the strongest non-selective post emergent herbicide you can purchase on the market. This herbicide will eliminate every unwanted grass, weed, bush, shrub, tree in the yard.
The active ingredient is: Diquat dibromide 2.9% and Glyphosate ammonium salt 73.3%.
When using Roundup QuikPro, mix 1 pack to 1 gallon of water. This will only eliminate weeds that have sprouted.