Getting rid of cockroaches requires 4 approaches:
1. Getting rid of adult and baby cockroaches
2. Breaking the reproductive cycle
3. Ensuring your home does not become a breeding ground for cockroaches
4. Restricting entry of cockroaches into the house
Getting rid of adult cockroaches is easy. You can use commercially available products to kill them. However, these products can also harm you, because the chemicals will settle on all surfaces in your kitchen, including vessels and food items.
Alternatively, you can use a relatively safer home remedy that I use. I learned it from my mother and have always had a cockroach-free home.
You'll need the first three in equal proportion:
• Atta (flour)
• Boric powder (available at chemists/medical shops)
• And ghee or butter for kneading
If you have 50grams of boric powder, take roughly the same amounts of sugar and atta. Mix all three ingredients and knead into a firm dough, using butter or ghee. Do not use water. Make small balls out of the dough and leave them in cockroach-infested areas.
The cockroaches will be attracted by the smell of ghee and eat the dough. The boric powder kills them. You will be rid of cockroaches within a few days.
Keep the above mixture away from small kids and pets.
To break the reproductive cycle you will have to continue the process again, so newly hatched cockroaches that you couldn't target also get eliminated.
Make sure that the kitchen and dining area are always clean. Cockroaches get drawn to food – so keep kitchen platform and dining table clean. Throw waste in the dustbin and keep it covered.
Block all crevices where cockroaches can hide/lay eggs. Use putty. Use cockroach traps on drains.
"A love affair with knowledge will never end in heartbreak" - Michael Garrett Marino