Yes, you can drown them in it or smash them with the can.
Otherwise, the little devils will just run away and clean themselves off while they hide in your cornflake box.
Floor tiles do not kill cockroaches. You will need to use a pesticide.
Ethyl alcohol can kill cockroaches. Bug killers can be bought especially for cockroaches in a spray form also. This is a popular way to kill roaches.
Yes, boiling water can effectively kill cockroaches by scalding them.
Yes
Yes, water can kill cockroaches by drowning them. Cockroaches can survive without air for a short period of time, but if they are submerged in water for an extended period, they will drown.
Yes
yes
No
When you kill a cockroach, the white stuff that spurts out is called hemolymph. It's the substance that cockroaches and other arthropods have in place of blood in their rudimentary circulatory systems.
yes if you drink too much
No, cockroaches do not typically kill humans. They are not known to be directly harmful to humans, but they can carry diseases and trigger allergies in some people.
Orange oil is known to effectively kill cockroaches. Orange oil is commonly found in degreasing spray that is used in the kitchen for cleaning.