. Cooperative economic insect report. Beneficial insects; Insect pests. 248 STATUS OF THE SCREW-WORM (Cochliomyla hominivorax) IN THE SOUTHWEST During the period March 20-26, one case was reported in the United States in Maricopa County, ARIZONA. The Republic of Mexico reported 23 cases as follows: Sonora 17, Tamaulipas 4, Veracruz 1 and San Luis Potosi 1. Sterile screw-worm flies released: Texas 4,017,250, Arizona 660,000 and Mexico 97,270,400. Positive Cases Negative Cases Ratio of Positive Cases to 100 Cases Negative Year Table 1. Current Cumulative Current Cumulative Current Cumulative Com
. Cooperative economic insect report. Beneficial insects; Insect pests. 248 STATUS OF THE SCREW-WORM (Cochliomyla hominivorax) IN THE SOUTHWEST During the period March 20-26, one case was reported in the United States in Maricopa County, ARIZONA. The Republic of Mexico reported 23 cases as follows: Sonora 17, Tamaulipas 4, Veracruz 1 and San Luis Potosi 1. Sterile screw-worm flies released: Texas 4,017,250, Arizona 660,000 and Mexico 97,270,400. Positive Cases Negative Cases Ratio of Positive Cases to 100 Cases Negative Year Table 1. Current Cumulative Current Cumulative Current Cumulative Comparison of specimens reported during corresponding week in 1964 and 1965 in Southwestern Eradication Area. (1966 area figures include cases reported from Arizona and/or California; 1965 figures reflect those from the 5-State area). 1964 204 701 1965 37 570 1966 27 78 301 Table 2. Comparison of specimens reported during corresponding week and in a corresponding area in 1965 in the United States-Mexico Barrier Zone.* 1965 1966 43 24 515 452 31 38 333 222 Mexico Field Study - No report received for this period. * Barrier Zone - Area in which screw-worm eradication operations are being carried out in an effort to prevent establishment of self-sustaining screw- worm populations in the United States. (Anim. Health Div.). Figures - Number of cases repor in infested counties period March 20-26 <Grid Release Boundar. 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. Animal and Plant Health Service. Plant Protection and Quarantine Programs; United States. Bureau of Entomology and Plant Quarantine; United States. Plant Pest Control Division. Hyattsville, MD. [etc. ] Plant Protection and Quarantine Programs Animal and Plant Health Service
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