. Bulletin of the Department of Agriculture. Agriculture. CONTROL OF ARGENTINE ANT IN CALIFORNIA. 5 tribution was made by Prof. C. W. Woodworth, of the University of California. It was then reported as widely distributed about the San Francisco Bay region and in Southern California at Azusa and Upland. By 1910 the total territory involved was estimated at 4,000 acres in northern California and 1,000 acres in the southern part of the vState. During the 10 years intervening between the second survey of Prof. Woodworth and to-day this ant has greatly extended its area of occupation, spreadin
. Bulletin of the Department of Agriculture. Agriculture. CONTROL OF ARGENTINE ANT IN CALIFORNIA. 5 tribution was made by Prof. C. W. Woodworth, of the University of California. It was then reported as widely distributed about the San Francisco Bay region and in Southern California at Azusa and Upland. By 1910 the total territory involved was estimated at 4,000 acres in northern California and 1,000 acres in the southern part of the vState. During the 10 years intervening between the second survey of Prof. Woodworth and to-day this ant has greatly extended its area of occupation, spreading into the great interior valleys of northern California, and including within its limits localities in every county in the south excepting one, as follows: Los Angeles, 39; San Bernar- dino, 8; Riverside, 4; Ventura, 5; Santa Barbara, 5; Orange, 10;. Fig. 2.—Present known distribution of the Argentine ant in Southern California. San Diego, 6. Two heavy infestations have been observed on Catalina Island, off the mainland of Los Angeles County. (vSee fig. 2.) The infested territory appears to fall for the most part within cities and towns, although the country acreage concerned is very large, between 8,000 and 10,000 infested acres being known in citrus alone. Elsewhere in the United States the Argentine ant has been reported to occur in settled localities throughout the Southern States, being established as far north as Nashville, Tenn., and Raleigh, N. C. First described from Argentina it has since gained a foothold in other parts of South America, in the Madeira Islands, South Africa, and 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. Dept. of Agriculture. [Washington, D. C. ?] : The Department : Supt. of Docs. , Govt. Print. Off.
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