Will bleach kill weeds?

boiling water..... but you'll still need to pull out the dead stuff, no matter what you use.... suggest a lot of water on the area to soak it, then a flat blade screwdriver to dig with and go for it.....

If your near a tractor supply company store go in there and buy their version of roundup. It is a lot cheaper and higher strength. You will find that you only have to use it twice a year (early spring then summertime). I forget what it is called, but they will show you. The name of the stuff (chemical) is something like glucophage.

Fire works on weeds, but it may leave black marks on your concrete, and it would heat up your asphalt. you don't have to worry about black marks on asphalt.. You can also pull them, which costs nothing. Additionally, if you have animals in your area, using grease will attract them.

yeah but if you dont want your grass dead dont use round up get to a home depot and they can help you with what would be best to use.

you can heat up grease and it will kill them for a little while but they will grow back after time

Use plain vinegar, full strength. Or just pull them out.

It would be better if you used Round Up, which is made for that purpose.