. Activities handbook. Veterinary medicine. Screwworm flies: Left, male; riyhl, female. Early investigations Screwworms have been known in Texas since 1842. During the summer months spread to adjoining States but subsequent cold, winter weather usually killed all but those in southern Texas. Screwworms were unknown in the Southeast until the summer of 19:):>, when the first infestations were reported in the. Larvae of screwworm. vicinity of Boston, Ga. They .spread rapidly and within 2 years were found throughout Florida. Each summer, infestations spread into Georgia, Alabama,
. Activities handbook. Veterinary medicine. Screwworm flies: Left, male; riyhl, female. Early investigations Screwworms have been known in Texas since 1842. During the summer months spread to adjoining States but subsequent cold, winter weather usually killed all but those in southern Texas. Screwworms were unknown in the Southeast until the summer of 19:):>, when the first infestations were reported in the. Larvae of screwworm. vicinity of Boston, Ga. They .spread rapidly and within 2 years were found throughout Florida. Each summer, infestations spread into Georgia, Alabama, and occasionally far- ther north, but they were subsequently killed by cold, winter weather in all Southeastern areas except peninsular Florida. Heavy losses sustained by the livestock in- dustry of the Southeast due to screwworm at-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Agricultural Research Service. Animal Disease Eradication Division. [from old catalog]. Washington, Agricultural Research Service, U. S. Dept. of Agriculture
Size: 1686px × 1481px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookleafnumber31, booksubjectveterinarymedicine
