eradication of rodents that are sources or carriers of communicable diseases (plague, tularemia, and leishmaniasis) and that cause economic losses. Deratization is conducted against mass species of rodents, predominantly of the families Muridae (rats and mice) and Cricetidae (gerbils, voles, and hamsters) that live in inhabited areas, on ships and airplanes, in deserts, steppes, and forests.

There are two types of deratization: prophylactic and exterminatory. Prophylactic deratization is directed toward depriving rodents of food, drink, and places for building burrows and nests. Toward this end, food products and their wastes are kept in drawers, bins, and cupboards. Windows in basement premises are glassed in or covered with finemeshed metallic screening. Apertures around entry points of electric, gas, water, sewage, and heating conduits are carefully plugged. Ventilating and other openings are covered with metallic screening, and rat runs are cemented or filled with broken glass.

Exterminatory deratization is obligatory for all enterprises and institutions and must be conducted year-round. It is performed by the prophylactic sections of regional or municipal sanitation-epidemiological stations (SES), on ships by the waterway or port SES, and on animal-breeding farms by the veterinary service. When there are increased numbers of murine rodents, occupying over 50 percent of the populated area, thorough deratization takes place twice a year (February-March and September). Selective deratization is performed when there is frequent infestation of a populated place. In accordance with international agreements, deratization is obligatory on all ships.

Biological, chemical, and mechanical methods (traps and crushers) are used in deratization. The biological method is based on the use of animals (cats, dogs, and others) and bacterial cultures. The most common method is chemical. Widely used are zookumarin, ratindan, zinc phosphide, and α-naphthylthiourea. Field rodents are exterminated predominantly in the spring, when, owing to insufficient food (fresh vegetation), they readily take bait containing poison or a bacterial culture. In deratization of loaded marine vessels, gas methods (fumigation) are also used—for example, hydrocyanic acid, methyl bromide, and sulfur dioxide.


Vashkov, V. I. Dezinfektsiia, dezinsektsiia i deratizatsiia. Moscow, 1956.


References in periodicals archive ?
Contract notice: Implementation of comprehensive services czystosciowo-cleaning, disinfecting, and deratization dezynsekcyjnych, internal transport and auxiliary activities in hospital departments provincial hospital in lomza.
The Serbian authorities, as Serbian papers report, conduct strict control of the hygiene in warehouses as mechanical cleaning, disinfection and deratization of the silos have all been introduced.
During the 1980s and 1990s, deratization around residential areas effectively decreased both rodent density and incidence of HFRS, especially the disease caused by SEOV (23,28).
Contract notice: Deratization, Desourisation, Disinfestation, Disinfection And Depigeonnisation
This contract is for insect control, disinfection and rat extermination of residences Semise, namely - Deratization of the common areas, cellars, local VO, car parks, green spaces and edges of buildings,- Disinfestation of common parts of buildings,- Disinfestation of units of the buildings,- Disinfection of columns VO,- Unblocking of VO columns.
Pest contract - Disinfection - Deratization 49 residences divided into three geographical lots.
Request for proposal: Provision of cleaning services, porterage, green maintenance, transportation, disinfestation and deratization in headquarters and overall FAO buildings
The services also include the supply and installation of consumables, treatment according to the process of local 3 D Pest Deratization and disinfection, as well as snow removal with or without penalty.