For immediate control, pour boiling water at the base of the weeds to kill them. For longer term control, spray with a 1:1 solution of white vinegar to water.
Do not use vinegar on the lawn or garden. Will kill everything.
I like to boil them with hot water. Crank up your grill, put the tea kettle on, get the water boiling and boil the weeds insitue.
Here's an interesting article about different weed killers
Hi Janet - This is the most effective all-natural weed killer DIY that we use. It's even been featured on Hometalk! Hope this helps! Hugs, Holly
Here's my DIY weed killer that I've been using for years: https://thekitchengarten.com/diy-weed-killer/
1 part vinegar and 1 part water and 1/4 tsp per quart dawn dish soap. works great on box elder bug nests too!