. Cooperative economic insect report. Beneficial insects; Insect pests. STATUS OF THE SCREW-WORM (Cochliomyia hominivorax) IN THE SOUTHWEST During the period July 25-31, a total of 31 cases was reported in the Southwestern Eradication Area, as follows by States and counties; TEXAS - Zavala 2, Terrell 1, Uvalde 1; NEW MEXICO - Hidalgo 2, Grant 1; ARIZONA - Cochise 1, Gila 2, Greenlee 1, Maricopa 2, Pima 5, Santa Cruz 2, Graham 4, Yavapai 5, Pinal 2. The Republic of Mexico reported 141 cases: Baja California Norte 1, Baja California Sur 43, Sonora 18, Chihuahua 20, Coahuila 18, Nueva Leon 2, Tam
. Cooperative economic insect report. Beneficial insects; Insect pests. STATUS OF THE SCREW-WORM (Cochliomyia hominivorax) IN THE SOUTHWEST During the period July 25-31, a total of 31 cases was reported in the Southwestern Eradication Area, as follows by States and counties; TEXAS - Zavala 2, Terrell 1, Uvalde 1; NEW MEXICO - Hidalgo 2, Grant 1; ARIZONA - Cochise 1, Gila 2, Greenlee 1, Maricopa 2, Pima 5, Santa Cruz 2, Graham 4, Yavapai 5, Pinal 2. The Republic of Mexico reported 141 cases: Baja California Norte 1, Baja California Sur 43, Sonora 18, Chihuahua 20, Coahuila 18, Nueva Leon 2, Tamaulipas 3, Durango 17, Veracruz 14, Sinaloa 2, San Luis Potosi 3. Sterile screw-worm flies released: Texas 22,006,250, Arizona 9,098,000, New Mexico 3,040,000, California 200,000, the Republic of Mexico 91,504,000. Year Positive Cases Current Cumulative Ratio of Positive Cases Negative Cases to 100 Cases Negative Current Cumulative Current Cumulative Table 1, 1963 1964 1965 46 0 31 Table 2. 1964 1965 137 129 Table 2A. 1964 1965 132 105 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). 2,276 104 467 Comparison of specimens reported during corresponding weeks and in a corresponding area in 1964 in the United States-Mexico Barrier Zone.* 74 4,421 67 4,130 91 3,460 1,272 2,782 77 62 1,257 1,457 Mexican portion of Barrier Zone only. 1,188 2,399 56 45 549 806 233,33 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. Dis. Erad. Div.) Figures. Number of cases reported in infested counties for period July 25 - 31 'â "-â ^â Grid Release Boundary Strategic river releases. Ple
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