. Cooperative economic insect report. Beneficial insects; Insect pests. STATUS OF THE SCREW-WORM (Cochliomyia hominivorax) IN THE SOUTHWEST During the period November 15 - 21, TEXAS reported 30 screw-worm cases in 15 counties: 5 in Kenedy County, 4 in Webb and Frio Counties, 3 in Bee County, 2 in Dimmit, San Patricio and Live Oak Counties, and 1 each in Presidio, Maverick, Ward, Kleberg, Karnes, Wilson, Caldwell and Refugio Counties. No cases reported from NEW MEXICO. In ARIZONA, 1 case was reported from Pinal County. The Republic of Mexico reported 290 cases: Sonora 159, Nuevo Leon 12, Tamaul
. Cooperative economic insect report. Beneficial insects; Insect pests. STATUS OF THE SCREW-WORM (Cochliomyia hominivorax) IN THE SOUTHWEST During the period November 15 - 21, TEXAS reported 30 screw-worm cases in 15 counties: 5 in Kenedy County, 4 in Webb and Frio Counties, 3 in Bee County, 2 in Dimmit, San Patricio and Live Oak Counties, and 1 each in Presidio, Maverick, Ward, Kleberg, Karnes, Wilson, Caldwell and Refugio Counties. No cases reported from NEW MEXICO. In ARIZONA, 1 case was reported from Pinal County. The Republic of Mexico reported 290 cases: Sonora 159, Nuevo Leon 12, Tamaulipas 24, Durango 13, Zacatecas 2, Chihuahua 55, Coahuila 14, San Luis Potosi 4, Veracruz 5 and Puebla 2. Sterile screw-worm flies released: Texas 21,140,250, Arizona 4,740,000, New Mexico 1,500,000 and Mexico 56,648,000. Year Positive Cases Current Cumulative Ratio of Positive Cases Negative Cases to 100 Cases Negative Current Cumulative Current Cumulative Table 1. Comparison of specimens reported during corresponding weeks in 1962 and 1963 in Southwestern Eradication Area. 1962 427 49,536 1963 108 6,213 1964 30 231 35 2,951 1,220 1, 194 6,968 211 5,991 3,8 Table 2. Comparison of specimens reported during corresponding weeks and in a corresponding area in 1963 in the United States-Mexico Barrier Zone.* 1963 1964 114 278 5,701 4,128 1,321 1,933 Table 2A. Mexican portion of Barrier Zone only. 1963 1964 61 264 1,905 3,886 201 841 1,425 278 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,).. Figures - Number of cases reported -.^ - in infested counties for \..}.. period November 15-21 \ ' '" <'***' Limits of Barrier Zone â ""â "Linear drop along river valleys. Please note that these images are extracted from scanned page images that may have b
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