. Cooperative economic insect report. Insect pests Control United States Periodicals. - 817 - STATUS OF THE SCREW-WORM (Cochliomyia hominivorax) IN THE SOUTHWEST During the period July 5-11, three screw-worm infestations were confirmed in TEXAS. One each from Coke, Crockett and Pecos Counties. Coke and Crockett Counties are outside of the fly-release area. ARIZONA reported 1 case in Cochise County. NEW MEXICO reported 1 case in Hidalgo County. The Republic of Mexico reported 105 cases from the States of Sonora (37), Tamaulipas (16), Nuevo Leon (14) , Coahuila (1), Chihuahua (27), Durango (6),
. Cooperative economic insect report. Insect pests Control United States Periodicals. - 817 - STATUS OF THE SCREW-WORM (Cochliomyia hominivorax) IN THE SOUTHWEST During the period July 5-11, three screw-worm infestations were confirmed in TEXAS. One each from Coke, Crockett and Pecos Counties. Coke and Crockett Counties are outside of the fly-release area. ARIZONA reported 1 case in Cochise County. NEW MEXICO reported 1 case in Hidalgo County. The Republic of Mexico reported 105 cases from the States of Sonora (37), Tamaulipas (16), Nuevo Leon (14) , Coahuila (1), Chihuahua (27), Durango (6), Zacatecas (1), Vera Cruz (1) , and San Luis Potosi (2). A total of 103,203,050 sterile screw-worms flies was released: 33,054,250 in Texas, 1,200,000 in New Mexico, 3,852,000 in Arizona and 56,096,800 in Mexico. The following is a comparison of specimens reported during corresponding weeks in 1962 and 1963. Ratio of Cases Positive Cases Negative Cases* Positive to Negative** Year Current Cumulative Current Cumulative Current Cumulative 1962 3,083 23,056 65 1,975 4,:100 1,:100 1963 128 2,015 123 4,160 :100 :100 1964 4 96 50 3,982 :100 :100 * The number of cases not screw-worm is an index of the efficiency of the reporting system. ** A comparison of the ratios of screw-worm cases to cases that are not screw- worm is an index of the change in number of screw-worm cases. (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 Health Inspection Service. Plant Protection and Quarantine Programs. Washington, D. C. : U. S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomolo
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