. Cooperative economic insect report. Insect pests Control United States Periodicals. - 807 - STATUS OF THE SCREW-WORM (Cochliomyia hominivorax) IN THE SOUTHWEST During the period July 4 - 10, a total of 47 cases was reported in the Southwestern Eradication Area, as follows by State and counties: TEXAS - Frio 1, Jeff Davis 1, La Salle 2, Dimmit 1, Medina 1 and Zavala 12; NEW MEXICO - Grant 5, Luna 1, Dona Ana 2, Chaves 1; ARIZONA - Yavapai 1, Cochise 2, Gila 2, Pima 6, Maricopa 2, Graham 4, Santa Cruz 1; CALIFORNIA - Imperial 1. In addition, one larva was identified from an unspeci- fied count
. Cooperative economic insect report. Insect pests Control United States Periodicals. - 807 - STATUS OF THE SCREW-WORM (Cochliomyia hominivorax) IN THE SOUTHWEST During the period July 4 - 10, a total of 47 cases was reported in the Southwestern Eradication Area, as follows by State and counties: TEXAS - Frio 1, Jeff Davis 1, La Salle 2, Dimmit 1, Medina 1 and Zavala 12; NEW MEXICO - Grant 5, Luna 1, Dona Ana 2, Chaves 1; ARIZONA - Yavapai 1, Cochise 2, Gila 2, Pima 6, Maricopa 2, Graham 4, Santa Cruz 1; CALIFORNIA - Imperial 1. In addition, one larva was identified from an unspeci- fied county in Texas. The Republic of Mexico reported 175 cases: Sonora 52, Chihuahua 25, Nuevo Leon 2, Tamaulipas 2, Coahuila 31, Baja California 2, Territory of Baja California Sur 23, Durango 21, Veracruz 11, San Luis Potosi 6. Sterile screw-worm flies released: Texas 18,538,250, New Mexico 3,040,000, Arizona 9,392,000, the Republic of Mexico 84,592,000. First flies released in California since the State was included in the eradication area totaled 100,000. ~~ Ratio of Positive Cases to 100 Cases Negative Positive Cases Negative Cases Year Current 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 1964 1965 128 4 47 2,015 99 361 123 61 85 4,160 3,935 3,182 Table 2. Comparison of specimens reported during corresponding weeks and in a corresponding area in 1964 in the United States-Mexico Barrier Zone.* 1964 1965 108 177 927 2,367 51 59 1,072 1,273 Table 2A. Mexican portion of Barrier Zone only, 1964 1965 * 105 137 859 37 422 2,073 34 680 304 85 Barrier Zone - Area in which screw-worm eradication operations are being carried out in an effort to prevent establish
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