Bleach can kill roaches if the cleaner is sprayed directly onto the insect. For example, it is possible to kill roaches inside a drain pipe by pouring the cleaner into the drain.
To kill roaches with bleach, fill a spray bottle with bleach and water and spray the insects directly. Use bleach with caution, because it can easily discolor fabrics and upholstery. Bleach is also corrosive and can damage metal when used consistently. For instance, cleaning drains with bleach may damage the pipes and result in the need for repairs. Typically, bleach is used sparingly to treat very minor infestations.
Non-porous surfaces can safely be sprayed with bleach. For instance, most bathtubs, kitchen counters and vinyl floors can be exposed to bleach without damaging the material. A standard cleaner that contains a small amount of chlorine bleach can be used in these areas to kill roaches. Bathrooms and kitchens can also be cleaned with a bleach solution to kill bacteria commonly carried by roaches. Bleach is typically ineffective for treating serious roach infestations. Serious roach infestations often require a professionally applied insecticide or bait system to eliminate the pests from the home.
To reduce wear on drain pipes and other fixtures in the home, use a diluted bleach solution infrequently. Hot, soapy water is also an alternative to bleach that kills roaches effectively without causing damage to the items in the home.Learn More
Adult mosquitoes cannot be killed with bleach. However, mosquito larvae can be killed by bleach. It is not recommended to spray bleach at adult mosquitoes.Full Answer >
Pesticides can kill roaches and other pests many ways, but the most common method of elimination is through disruption of the insect's nervous system, according to the Environmental Protection Agency. Most roach sprays contain nerve-destroying agents similar to those used in chemical weapons, but they are used in much smaller doses to prevent harm to pets and humans, according to Wessels Living History Farm.Full Answer >
Keep roaches away by locating the nest, getting rid of paper product stashes, putting food away, keeping the area clean, eliminating watering holes, caulking cracks and crannies and putting out roach bait. Apply pesticides only as a last resort.Full Answer >
Pungent smells and unsanitary environments with unopened or decaying foods attract cockroaches most. They often go after meats, cheeses, grease, starch and sugary foods, and they are known to survive off of cardboard, leather, nylon clothing and other non-food items as well.Full Answer >