2,4-D, dimethylamine salt is in Step 1 of the Weed Killing Funnel. It kills a wide variety of weeds all at once. If you’ve applied it and still have weeds that won’t die, it may be time to try step 2.
Warning: It is not recommended to use 2,4-d when temperatures are over 90 degrees. Doing so can damage your desired turf. More on 2-4d to come.