Most gardeners use either round up or spectacide products for spraying, some others just use their weed-eater. Be careful of loose rocks and gravel if using weed-eater.
my sister put a bleach solution on all the weeds in the driveway which is working, all the weeds are now dead but i just went on a yanking spree along the sidewalk and everywhere she missed... I'm thinking this is gonna be an all summer affair...
I just watched this story about giant hogweed found in Michigan; I had no clue this weed is so dangerous, we have it here in southern Ontario also ,in many more US states, UK, most Europe; can cause painful deep skin burning and blindness; https://www.google.com/search?q=giant+hogweed&hl=en-GB&rlz=1T4GGNI_en-GBCA515CA515&source=lnms&tbm=isch&sa=X&ved=0CAcQ_AUoAWoVChMI-q-UpbuTxwIVAhCSCh0tvA2a&biw=1178&bih=646"Don't touch this plant; you could go blind"http://www.usatoday.com/story/news/nation/2015/08/05/blinding-plant-michigan/31125003/