SCREWWORM (OLD WORLD AND NEW WORLD) Aetiology Epidemiology Diagnosis Prevention and Control References AETIOLOGY Classification of the causative agent The New World screwworm fly (NWS), Cochliomyia hominivorax (Coquerel), and the Old World screwworm (OWS), Chrysomya bezziana (Villeneuve), are both obligate parasites of mammals during their larval stages. Ask anyone who was ranching in Texas before the mid-1960s and they can tell you about the screwworm fly. Eradication of the screwworm, .

James E. Novy. The screwworm eradication effort is a collaboration between USDA and the Panamanian government and extends through Panama, maintaining a barrier at the Darien Gap, next to Colombia. The eradication of the screwworm fly in the late 1950s has stood as a towering achievement in the history of insect pest management, in no small part because of how devastating C. hominivorax can be. The adult screwworm is a dark, shiny, bluish-green fly about 10 mm (0.4 in) long. Cochliomyia hominivorax (Coquerel), using the sterile-male technique, depends on routine, accurate and spaced release of sexually sterilized screwworm flies in adequate numbers to overwhelm the native populations.

The adult primary screwworm, Cochliomyia hominivorax is a metallic blue fly with three stripes that run down the top (dorsal surface) of the fly just behind the head, and orange eyes (Figure 1). Screwworm control and eradication in the southern United States of America. Since then, strategic deployment of sterile flies has been used effectively in many locales--most recently, northern Africa--to protect vast areas from the horrific screwworm's predations.

Wyss JH(1). If not, you can thank the local USDA-Animal Research Service Knipling-Bushland U.S. Livestock Insects Laboratory on route 16 just north of I-10. Author information: (1)United States Department of Agriculture, Panama City, Panama. The Screwworm Eradication Program Agreement between the United States and Mexico was signed the same year. A severe screwworm outbreak in the United States in 1972 demonstrated the continuing vulnerability of U.S. livestock to the spread of screwworm from the flies' own flight range and from the movement of infested animals.

The speed with which screwworm eradication was achieved on Curacao demonstrated the great potential of this control method. Adults are roughly 2 to 3 times the size of a house fly. Screwworm Eradication in the United States The first screwworm eradication trial took place on Sanibel Island, off the coast of Florida. This collection covers all of the areas of entomology researched … Cochliomyia hominivorax was historically found throughout the southern United States, Central America, and the northern countries of South America. Screwworm eradication programs have not been successful in Jamaica. The Alfred H. Baumhover Papers: Screwworm Eradication Program Records contains materials that span from 1917-2002, with the bulk from 1950-1977. The Screwworm Production Facility in Pacora, Panama, continuously produces and releases sterile male screwworm flies to prevent northern migration of, and infestation by, Colombian screwworm. Screwworm Fly Eradication: Local Lab Played Major Role in Eliminating the Pest from Texas Ever hear of the screwworm fly? In 1972, the U.S. and Mexico established the Screwworm Eradication Program agreement.

Should either species (Old World SWF Chrysomya bezziana, or New World SWF Cochliomyia hominivorax) of this pest establish in Australia, the only proven eradication method is the sterile insect technique (SIT). Dermatobia hominis is the primary human bot fly.Cochliomyia hominovorax is the primary screwworm fly in the New World and Chrysomya bezziana is the Old World screwworm.Cordylobia anthropophaga is known as the tumbu fly. jwyss@panama.c-com.net The screwworm fly, Cochliomyia hominivorax (Coquerel), is a parasite that attacks all warm-blooded animals including humans. NWS and … Researchers released 39 sterile males per square kilometer each week for eight weeks, and saw the screwworm population drop off to virtually zero; however, screwworm flies continued to migrate from the mainland, so the island wasn't rendered screwworm … Screwworm eradication in the Americas.

The center stripe begins partway down the backside and appears shorter than the outer stripes.

The Edward Fred Knipling Papers: Screwworm Eradication Program Records are part of a series of collections documenting the U.S. Department of Agriculture (USDA) Screwworm Eradication Program. These materials were collected by Baumhover during his involvement in the eradication of the screwworm from the United States and the island of Curaçao, Netherlands Antilles.