Some of the best Insecticide powder for killing cockroaches that you can buy in Nairobi, Kenya are:
- Green Leaf sachets Powder: Costs ksh. 50 (sold in the streets by hawkers)
- Mortein Doom powder (sold in supermarkets)
- Larva Insecticide: Costs ksh. 250 (after spraying, stay out of your house for some hours. Consult the seller on the best use case) (sold in agrovets and pharmacy)
Also ensure that you keep your house clean.