This weed is Common Cocklebur (Xanthium strumarium).  It is an annual that reproduces only by seeds, which are still immature in the green bur fruits shown in your photos.   So, your best bet is to keep it from maturing seeds:

Sever or cut down the weed- now -  at or just below ground line, using a shovel blade or lopper-type pruning shears.   Watch for any re-growth and cut it down again.   Or, just dig it out carefully.   You can compost the plant or discard in trash.