. Cooperative economic insect report. Beneficial insects; Insect pests. - 1340 - STATUS OF THE SCREW-WORM (Cochliomyia hominivorax) IN THE SOUTHWEST During the period December 12-18, a total of 13 cases was reported in the Southwestern Eradication Area by States and counties as follows: TEXAS - Hidalgo 5, Webb 2, Brooks 2, Jim Hogg 2; ARIZONA - Maricopa 2. The Republic of Mexico reported 78 cases: Sonora 6, Coahuila 4, Chihuahua 31, Nuevo Leon 3, Tamaulipas 20, Territorio sur de Baja California 14. Sterile screw-worm flies released: Texas 19,406,250, Arizona 3,400,000, New Mexico 600,000, and
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. Cooperative economic insect report. Beneficial insects; Insect pests. - 1340 - STATUS OF THE SCREW-WORM (Cochliomyia hominivorax) IN THE SOUTHWEST During the period December 12-18, a total of 13 cases was reported in the Southwestern Eradication Area by States and counties as follows: TEXAS - Hidalgo 5, Webb 2, Brooks 2, Jim Hogg 2; ARIZONA - Maricopa 2. The Republic of Mexico reported 78 cases: Sonora 6, Coahuila 4, Chihuahua 31, Nuevo Leon 3, Tamaulipas 20, Territorio sur de Baja California 14. Sterile screw-worm flies released: Texas 19, 406, 250, Arizona 3, 400, 000, New Mexico 600, 000, and Mexico 25, 538, 000. Positive Cases Negative Cases Ratio of Positive Cases to 100 Cases Negative 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 11 1964 0 1965 13 6350 237 1011 19 21 67 7319 6174 5006 57.89 86.76 0.00 3.83 19.40 20.19 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 94 91 4442 5591 27 35 2045 2245 348.14 260.00 217.21 249.04 Feasibility Survey - During this period, 150 cases were identified in Mexico south of the Barrier Zone, as follows: Yucatan 10, Veracruz 45, Tabasco 6, Oaxaca 3, Chiapas 11, Jalisco 5, Michoacan 4, Guerrero 20, Puebla 8, Guanajuato 7, San Luis Potosi 5, Durango 16, Sinaloa 6, Nyarit 2, Morelos 1, Queretaro 1. ? 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 Dec. 12-18. Grid Release Boundary Strategic River Rele. Please note that these images are extracted from scan