If you can’t dig out the roots because of other plants nearby, use a hoe to cut off the bindweed at ground level. Repeat the process as new growth appears. It’s best to dispose of it in the trash. If you compost the bindweed, it could spread to your compost bin.
Please note: The WHO considers glyphosate to be a probable human carcinogen. Its use is prohibited in some states and countries. Please check with your local laws and use caution if handling this chemical. Glyphosate weedkiller will destroy other plants, like flowers and vegetables, so be sure to spray it only on the bindweed. Glyphosate weedkiller can be found at garden centers and superstores and also comes in a gel that you can paint on individual leaves.