PROBLEMÁTICA DEL GUSANO BARRENADOR DEL GANADO, Cochliomyia hominivorax (Coquerel, ) EN COLOMBIA THE PROBLEM OF SCREWWORM. The new world screwworm fly, Cochliomyia hominivorax, in larval stage is an obligate parasite of mammals and humans, causing traumatic myiasis. The female. “Comision Mexico-Americana Para la Erradicacion del Gusano Barrenador del Ganado.” Special Collections, USDA National Agricultural Library. Accessed.

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It is difficult to see on first sigh in a wound, the presence of screwworm larvae in its first stages of life; only can be observed by very slight movements. However in eradication of NWS was fully achieved.

To this order belong flies and mosquitoes. In the United States two cases were detected in in hunting dogs transported from Honduras and Venezuela; one case was detected in in a horse from Argentina; and one case was diagnosed in in a soldier coming from Panama.

In addition, the C and DC-3 aircraft originally used to disperse the flies were later replaced by a fleet of smaller aircraft, such as the Cessna and PA see Figure 7. This parasite is harmful, in terms of production and mortality for all warm- blooded animals, i.

This oviposition performed in the dry edges of the gusxno of warm-blooded animals looking the hardest part without fluid, usually to one side thereof. University Archives Borrow it. In the case of the male they are united holoptical and in the female there is a separation between both eyes dichopticand they are about twice the size of a housefly. Barrenadro eradication has been successful in North and Central America, including some Caribbean islands.

In Mexico, cases detected in in the northeastern zone of the country, mostly in bovines, were caused ganadp the introduction of a single female sheep from the State of Yucatan enzootic zone guszno and six cases were detected in in the port of Acapulco Guerrero in bovines transported from Panama.


The problems of gusaon sufficient good quality sterile flies economically were solved by the construction of an extra insect colony and the improvement of methods for rearing gusan. The latter undoubtedly competes in animal and public health and economic importance with the NWS in the countries of Central and South America.

Cite Data – Experimental. This translation is done by taking advantage of shades offered by the vegetation.

Bafrenador Commission The Commission is governed by a Board of Directors formed of officers from both countries. Populations increased more from April to October than during the coolest and driest months. Consequently, a medium-term plan was agreed to whereby eradication activities were continued throughout the rest of Mexico, Belize and Guatemala. More sophisticated is the use of organophosphate larvicides to cause intoxication and death of the larvae.

The diffusion of NWS in Mexico and beyond the border into the southern United States led to a signed eradication agreement gusanp the two countries in Even with treatment, particularly if delayed, secondary infections can gannado through the bloodstream and cause arthritis, enteritis and septicemia.

The new world screwworm fly, Cochliomyia hominivorax, in larval stage is an obligate parasite of mammals and humans, causing traumatic myiasis.

The new world screwworm in Mexico and Central America

Activities in Central America Puerto Rico. The results were excellent, as shown by the reduction in positive cases recorded. Critical lines During the course of the programme, once Barrwnador was eradicated from a defined geographical zone a critical line see Figure 6 would be established dividing the freed zone from control zones.

It is recommended that those animal husbandry practices requiring the wounding of animals be carried out during the dry and cold months, and that if possible grazing be allowed during the night. In an eradication programme was initiated on the island of Puerto Rico and sterile insects were transported from the plant in Mission, Texas. Data Citation of the Item Gusano barrenador del ganado: The infestation ganqdo when the screwworm gamado incubated in the wound of barrenadorr animal or host and the barrenadorr proceeds to feed of the live flesh.


Language difficulties were overcome by the employment of a bilingual inspection team with knowledge of the work areas and the livestock-raising activities of the zone. As the larva feeds, the wound gradually enlarges, becoming larger and deeper.

Typically these animals are separated from the rest and seek for isolated areas or with shadows to get laid. Ecological implications of control strategies: Once all the countries of Central America were freed of screwworm, a sterile insect production plant and biological barrier see Figure 4 were established in the Isthmus of Panama, thereby taking advantage of geographical and ecological factors and the convenient position of the isthmus for ground communications with the countries of South America.

In Mexico two other species of parasitic Diptera follow NWS in importance, in the northern plains Hypoderma bovis locally called barro del ganado and in the tropical southern zones Dermatobia hominis colmoyote.

Consequently, there is no accurate information available about its seasonal distribution, geographic distribution and affected species. Cartography History Animal science Cochliomyia hominivorax. The item Gusano barrenador del ganado: The installation and equipment were conserved as a strategic resource in case of eventual reinfestation. Arthropods of domestic and production animals. They are of short duration so they are not usually collected at this stage for identification.

In Puerto Rico, one case was detected in in a horse transported from Venezuela. The New World screwworm NWSCochliomyia hominivorax Coquerelhas existed on the American continent see Figure 1 from ancient times, and its name is found in all the principal indigenous dialects.

Gusano Barrenador del Ganado

Krafsur 1 Estimated H-index: Bushland 1 Estimated H-index: They are blue — bright green metallic colored, their eyes are reddish orange. Flies that produce miasis. The preliminary results were encouraging.