. Cooperative economic insect report. Insect pests Control United States Periodicals. - 1135 - STATUS OF THE SCREW-WORM (Cochliomyia hominivorax) IN THE SOUTHWEST During the period September 27 - October 3, TEXAS reported 4 screw-worm cases: one each in Presidio, Sutton, Zapata and Starr Counties. NEW MEXICO reported 2 occurrences: Luna (1) and Catron (1). ARIZONA, 3 cases reported: Santa Cruz (2) and Pima (1). Republic of Mexico reported 205 cases: San Luis Potosi (1), Nuevo Leon (6), Chihuahua (74), Sonora (106), Durango (8), Tamaulipas (6) and Coahuila (4). Sterile screw-worm flies released
. Cooperative economic insect report. Insect pests Control United States Periodicals. - 1135 - STATUS OF THE SCREW-WORM (Cochliomyia hominivorax) IN THE SOUTHWEST During the period September 27 - October 3, TEXAS reported 4 screw-worm cases: one each in Presidio, Sutton, Zapata and Starr Counties. NEW MEXICO reported 2 occurrences: Luna (1) and Catron (1). ARIZONA, 3 cases reported: Santa Cruz (2) and Pima (1). Republic of Mexico reported 205 cases: San Luis Potosi (1), Nuevo Leon (6), Chihuahua (74), Sonora (106), Durango (8), Tamaulipas (6) and Coahuila (4). Sterile screw-worm flies released: Texas 21,642,250, New Mexico 1,344,000, Arizona 5,554,000 and Mexico 59,421,600. Ratio of Positive Cases Positive Cases Negative Cases to 100 Cases Negative Year Current Cumulative Current Cumulative Current Cumulative Table 1. Comparison of specimens reported during corresponding weeks in 1962 and 1963 in Southwestern Eradication Area. 1962 1,581 39,762 41 2,446 3, 1, 1963 585 3,906 142 5,309 1964 6 115 122 4,703 Table 2. Comparison of specimens reported during corresponding weeks and in a corresponding area in 1963 in the United States-Mexico Barrier Zone.* 1963 519 3,819 34 1,092 1, 1964 203 2,727 16 1,540 1, Table 2A. Mexican portion of Barrier Zone only. 1963 102 1,177 2 150 1964 196 2,576 6 707 3, 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- tion in the United States. (Anim. Dis. Erad. Div.).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Bureau of Entomology and Plant Quarantine; United States. Plant Pest Control Branch; United States. Plant Pest Control Division; United States. Animal and Plant He
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