. Cooperative economic insect report. Beneficial insects; Insect pests. - 950 - STATUS OF THE SCREW WORM (Cochliomyia hominivorax) IN THE SOUTHWEST During the period August 1-7, a total of 45 cases was reported in the Southwestern Eradication Area, as follows by States and counties: TEXAS - Zavala 12; NEW MEXICO - Hidalgo 1, Grant 1, Sierra 2; ARIZONA - Mohave 3, Yavapai 4, Gila 7, Maricopa 5, Pinal 2, Pima 2, Santa Cruz 1, Cochise 2. The Republic of Mexico reported 111 cases: Baja California Norte 1, Baja California Sur 11, Sonora 31, Chihuahua 17, Nuevo Leon 5, Tamaulipas 1, Durango 24, Vera
. Cooperative economic insect report. Beneficial insects; Insect pests. - 950 - STATUS OF THE SCREW WORM (Cochliomyia hominivorax) IN THE SOUTHWEST During the period August 1-7, a total of 45 cases was reported in the Southwestern Eradication Area, as follows by States and counties: TEXAS - Zavala 12; NEW MEXICO - Hidalgo 1, Grant 1, Sierra 2; ARIZONA - Mohave 3, Yavapai 4, Gila 7, Maricopa 5, Pinal 2, Pima 2, Santa Cruz 1, Cochise 2. The Republic of Mexico reported 111 cases: Baja California Norte 1, Baja California Sur 11, Sonora 31, Chihuahua 17, Nuevo Leon 5, Tamaulipas 1, Durango 24, Veracruz 11, San Luis Potosi 1, Sinaloa 6. Sterile screw-worm flies released: Texas 50,086,250, New Mexico 2,800,000, Arizona 12,364,000, California 900,000, the Republic of Mexico 77,688,000. Ratio of Positive Cases to 100 Cases Negative Positive Cases Negative Cases Cumulative Current Cumulative Current Cumulative Table 1. Comparison of specimens reported during corresponding weeks 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 33 1964 1 1965 45 2,309 105 512 66 53 85 4,487 4,183 3,545 Table 2. Comparison of specimens reported during corresponding weeks and in a corresponding area in 1964 in the United States-Mexico Barrier Zone.* 1964 100 1965 95 Table 2A. 1964 100 1965 66 1,372 37 44 1,294 1,501 Mexican portion of Barrier Zone only. 1,288 2,465 18 14 576 820 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.). Figures - Number of cases reported \^ in infested counties for period August 1-7 — • — •^ Grid Release Boundary Strategic river releas. Please note that these images are extracted fro
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