Lakshman Rekha Chalk

Lakshman Rekha is aÊcockroach-killing chalk with 10% cypermethrin.ÊIt is also effective against ants.ÊLaxmanrekhaa Spray is an aerosol ready to use insecticide that gives instant relief by controlling crawling insects like cockroaches, ants, spiders, bed bugs, silverfish, centipedes, ticks etc.ÊAlternatively, you can create a laxman rekha for the ants using chalk or talcum powder. This destroys their sense of smell and crossing it is near impossible for them.