. Cooperative economic insect report. Insect pests Control United States Periodicals. - 1110 - STATUS OF THE SCREW-WORM (Cochliomyia hominivorax) IN THE SOUTHWEST During the period September 5-11, a total of 26 cases was reported in the Southwestern Eradication Area as follows by State and county: TEXAS - Brewster 2, Jeff Davis 2, El Paso 1 and Presidio 1; NEW MEXICO - Grant 4, Luna 1 and Socorro 1; ARIZONA - Chochise, Gila, Greenlee and Yavapai 1 each and Graham 9; CALIFORNIA - Imperial 1. The Republic of Mexico reported 144 cases: Sonora 43, Chihuahua 37, Nuevo Leon 1, Territorio sur de Baja


. Cooperative economic insect report. Insect pests Control United States Periodicals. - 1110 - STATUS OF THE SCREW-WORM (Cochliomyia hominivorax) IN THE SOUTHWEST During the period September 5-11, a total of 26 cases was reported in the Southwestern Eradication Area as follows by State and county: TEXAS - Brewster 2, Jeff Davis 2, El Paso 1 and Presidio 1; NEW MEXICO - Grant 4, Luna 1 and Socorro 1; ARIZONA - Chochise, Gila, Greenlee and Yavapai 1 each and Graham 9; CALIFORNIA - Imperial 1. The Republic of Mexico reported 144 cases: Sonora 43, Chihuahua 37, Nuevo Leon 1, Territorio sur de Baja California 12, Tamaulipas 2, Durango 36, Veracruz 6, San Luis Potosi 4 and Coahuila 3. Sterile screw-worm flies released: Texas 18,026,250, New Mexico 6,080,000, Arizona 15,100,000, California 620,000 and Mexico 59,012,000. Positive Cases Negative Cases Ratio of Positive Cases to 100 Cases Negative Year Current Cumulative Current Cumulative Current Cumulative Table 1. Comparison of specimens reported during corresponding week in 1963 and 1964 in Southwestern Eradication Area. (1965 area figures include cases reported from Arizona and/or California; 1964 figures reflect those from the 5-State area). 1963 1964 1965 140 0 26 2783 105 660 82 61 49 4868 4442 3810 Table 2. Comparison of specimens reported during corresponding week and in a corresponding area in 1964 in the United States-Mexico Barrier Zone.* 1964 1965 222 121 2112 3523 34 23 1479 1702 Table 2A. Mexican portion of Barrier Zone only, 1964 1965 208 98 1916 2998 21 12 680 651 Barrier Zone - Area in which screw-worm eradication operations are being carried out in an effort to prevent establishment of self-sustaining screw-worm popula- tions in the United States. (Anim. Health Div.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance


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