Citiclean supply borax in large quantities (5kg or more). An effective and eco-friendly way to rid your home of cockroaches. Smaller amounts of borax (e.g. 50g and 100g packets) should be available at your local pharmacy.

For residential use Dee advises par cooking and 1 egg and 1 potato and mixing together with 50g of borax, roll into little balls in the palm of your hand and place these close to likely breeding sites (e.g. under kitchen sink, fridge and washing machine). The borax inhibits their growth and reproduction.