BUREAU OF ENTOMOLOGY AND PLANT QUARANTINE 35 
cotton-growing States. Only three counties were found infested for 
the first time — Quay in New Mexico and De Witt and Crockett in 
Texas. All were adjacent to known infestations. Infestations were 
found in 40 new counties in 1947. In Florida there has been a decided 
increase of infestation on wild cotton since eradication of these plants 
has been discontinued. 
Within regulated areas inspections in 54 counties of Arizona. New 
Mexico, Oklahoma, and Texas were negative. Inspections of cotton 
blooms early in the 1948 season revealed infestations in southern Texas 
capable of developing high populations. 
Inspections of gin trash in Texas revealed a considerable increase 
in pink bollworm populations over the previous year in Cameron, 
Hidalgo, Willacy, Starr, Jim Hogg, Brooks, Zapata, Webb, Duval, 
Jim Wells, Kleberg, Nueces, and Maverick Counties. San Patricio 
and Calhoun Counties showed less infestation than in 1947. None 
was found for the third consecutive season in Brazoria, Chambers, 
Liberty, Orange, Jefferson Counties and the regulated portion of 
Harris County, and the} 7 have been released from the quarantine. 
Inspection results were negative for the second successive year in 
Jackson, Matagorda, and Wharton Counties. 
Inspections in August 1948 showed an infestation in blooms in 
Howard County, Tex., the first record of pink boll worms in blooms 
in that area. Subsequent inspections of gin trash disclosed a consid- 
erable infestation in Andrews, Gaines, Martin, Midland, and Howard 
Counties, and the western half of Mitchell County. Infestation in 
the remainder of northwestern Texas was much lighter, and many 
counties found infested in 1947 were apparently free this year. In- 
festation recurred in only Mills and Hamilton of the eight counties 
of central-west Texas placed under quarantine in the fall of 1947. 
Thorough inspections were negative in the eight southwestern Okla- 
homa counties placed under quarantine in 1947. Inspections in Ari- 
zona were negative except for continued light infestations on the 
eastern border. There was little change in infestation in the irri- 
gated valleys of New Mexico and western Texas. In 53,500 bushels 
of gin trash from the 1948 crop in regulated areas of Arizona, New 
Mexico, Oklahoma, and Texas, 268,400 pink bollworms were found, 
principally in Texas. In the field nearly 12,000,000 bolls, blooms, 
and squares were inspected in Arizona, New Mexico, and Texas, and 
23,600 pink bollworms were found, all in Texas with the exception of 
1 in New Mexico. In addition, 8 Thurberia weevils were found in 
bolls in Arizona. 
Inspection of 36,900 bushels of gin trash from areas outside regu- 
lated territory plus 916 bushels in Mexico yielded 6 pink bollworms, 
3 each from Texas and New Mexico. From 3,600 bolls, blooms, and 
squares examined in fields of free areas in Arizona, New Mexico, and 
Texas, 1 pink bollworm was found in Texas. 
Control operations 
Dusting to control the pink bollworm was performed in three 
heavily infested sections in the summer of 1948 — in 9 southern Texas 
counties, 135 fields totaling 5,639 acres; in Howard County, northwest- 
ern Texas, 9 fields of 490 acres; and in Mexico adjacent to the border, 
