Fight with cockroaches.

 They are displaying, and activity showing is on the nighttime, as feeding meal wastes, dirty, garbage, leather items, cotton, silk, woollen, glue, sawdust. They are transferring on the paws and body covers, and with own secretions ARE different microorganisms, as agents by bowel infections, tuberculosis, helminth eggs. And preventing spreading and resettlement theirs, thus at place, where you are staying and leaving in clean, regular to do repair, cracked walls recovering, as and holes, in ceilings between floors, in places of different communications are radiators, heating, plumbing, canalization,  elector, tubes of gas network.

 An importance to overlap theirs a feed and water, as all food keeping at closed boxes , trash every day remove , wash sink after washing dishes as table after eating, wash dishes right away after eat, from a table remove all crumbs, food. A simple, not harmful for human and effective remedies are baits for theirs with adding borax   or boric acid. And these are a few recipes of baits.

Mix borax , sugar, starch, as 3 to 1 and 1, or borax , peas flour, and starch on 2 to 1 and 1.

 Or yolk of hard-boiled egg rub with one tbl.sp. of boric acid and one tbl.sp. sweet manna porridge or one tbl.sp. of boric acid add in raw yolk and sugar powder. After roll balls and add in places,where they are staying/as at WC, kitchen, bathrooms, as in skirting boards. Change  baits in every 25-30 days, and check ,that they are not having access  to water. And on a beginning  on a first week, are cockroaches will be a more ,than usual, that they will go from shelters to baits , after slowly will disappear.

By Didenko, Sanitary doctor.