Bindi-eye plants are common lawn weeds. Most homeowners notice that their yard is infested when they step on one of the prickly burrs with their bare feet. Bindi-eye can be difficult to get rid of. According to the Western Australia Department of Agriculture, pulling individual bindi-eye weeds by hand is an ineffective way to kill them. It is tough to spot all of the plants in a lawn and equally hard to remove all of the roots. The best way to kill bindi-eye is to spray the entire lawn with a broad-leaf herbicide.
Mix the broad-leaf herbicide in the hose-end sprayer according to the manufacturer's instructions.
Twist the end of your hose into the hose-end lawn sprayer according to its instructions.
Spray the lawn to evenly coat it with broad-leaf herbicide according to the manufacturer's instructions.
Re-treat the lawn at the interval dictated by the manufacturer (usually two weeks) if all of the weeds have not been killed in 10 days.