. Cooperative economic insect report. Insect pests Control United States Periodicals. - 1078 - STATUS OF THE SCREW-WORM (Cochliomyia hominivorax) IN THE SOUTHWEST No screw-worm cases reported from TEXAS or NEW MEXICO September 6-12. In ARIZONA, 15 cases reported: Cochise (8), Santa Cruz (5), Yavapai (1) and Pima (1) Counties. Mexico reported 241 cases in States of Veracruz (2), San Luis Potosi (2), Nuevo Leon (3), Chihuahua (74), Sonora (116), Zacatecas (4), Puebla (2), Durango (23), Tamaulipas (9) and Coahuila (6). Sterile screw-worm flies released: 19,769,850 in Texas, 600,000 in New Mexico,
. Cooperative economic insect report. Insect pests Control United States Periodicals. - 1078 - STATUS OF THE SCREW-WORM (Cochliomyia hominivorax) IN THE SOUTHWEST No screw-worm cases reported from TEXAS or NEW MEXICO September 6-12. In ARIZONA, 15 cases reported: Cochise (8), Santa Cruz (5), Yavapai (1) and Pima (1) Counties. Mexico reported 241 cases in States of Veracruz (2), San Luis Potosi (2), Nuevo Leon (3), Chihuahua (74), Sonora (116), Zacatecas (4), Puebla (2), Durango (23), Tamaulipas (9) and Coahuila (6). Sterile screw-worm flies released: 19,769,850 in Texas, 600,000 in New Mexico, 7,146,000 in Arizona and 66,440,000 in Mexico, Table 1. Comparison of specimens reported during the corresponding weeks in 1962 and 1963 in Southwestern Eradication Area. Ratio of Positive Cases Positive Cases Negative Cases* to 100 Cases Negative** Year Current Cumulative Current Cumulative Current Cumulative 1962 873 35,637 50 2,339 1, 1, 1963 140 2,783 82 4,868 1964 0 107 61 4,442 Table 2. Comparison of specimens reported during corresponding weeks and in a corresponding area in 1963 in the United States-Mexico Barrier Zone.*** Ratio of Positive Cases Positive Cases Negative Cases* to 100 Cases Negative** Year Current Cumulative Current Cumulative Current Cumulative 1963 212 2,717 15 1,009 1, 1964 222 2,112 32 1,477 * The number of cases not screw -worm is an index of the efficiency of the reporting system. ** A comparison of the ratios of screw-worm cases with cases not screw- worm is an index of the change in number of screw-worm cases. *** Barrier Zone - Area in which screw-worm eradication operations are being carried out in an effort to prevent establishment of a self-sustaining screw-worm popula- tion in the United States. (Anim. Dis. Erad. Div.).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrati
Size: 1979px × 1262px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
