Mix baking soda and sugar together and put them in a bowl. Will kill them dead without toxicity to humans.
Boric acid has no resistance.
Bay leaves repel about every insect known to man. Roaches hate bay leaves and will not be in the same area with them.
Editing to say that bay leaves can be crushed in a coffee grinder, put in a plastic ketchup/mustard bottle as a powder, and the resulting powder "puffed" into areas where they have been. This can be done outside as well. Combine this with orange oil concentrate and your house will be insect free fairly quickly. Cheap, too.
Editing to add, here in the south, loads of people also buy concentrated orange oil from places like Tractor Supply and mix it with water in a pump sprayer. Spray the permimeter of your house and zero insects will cross it. It's toxic as hell to the insects because it dissolves their bodies, but non-toxic to cats, dogs, lizards, etc. They will NOT develop a resistance to being melted by the citric acid.
Boric acid has no resistance.
Bay leaves repel about every insect known to man. Roaches hate bay leaves and will not be in the same area with them.
Editing to say that bay leaves can be crushed in a coffee grinder, put in a plastic ketchup/mustard bottle as a powder, and the resulting powder "puffed" into areas where they have been. This can be done outside as well. Combine this with orange oil concentrate and your house will be insect free fairly quickly. Cheap, too.
Editing to add, here in the south, loads of people also buy concentrated orange oil from places like Tractor Supply and mix it with water in a pump sprayer. Spray the permimeter of your house and zero insects will cross it. It's toxic as hell to the insects because it dissolves their bodies, but non-toxic to cats, dogs, lizards, etc. They will NOT develop a resistance to being melted by the citric acid.