ee a a ae 
ey 
>» 
* itruns east to Whitwell and then turns southward to Chattanooga, entering Hamilton County just northy 
‘ 
f 
“al 

=s DEPARTMENT CIRCULAR 210. 
& 
~County into Maury at the extreme southeast corner of the former and continues eastward to Columbi 
Issued February 23, 1922. 













UNITED STATES DEPARTMENT OF AGRICULTUE ! ‘ 

Contribution from the Bureau of Entomology. 
L. O. HOWARD, Chief. 
DISPERSION OF THE BOLL WEEVIL IN 19: 
By B. R. Coan, E. 8. Tucker, W. B. WiuraMs, F. F. Bonny, and R. C. ( 
The mild winter of 1920-21 and the wet summer of 1921 favored an abnormal multiplication of 
tory infested by this irsect. The weevil has now reached the limit of cotton cultivation, excep 
Oklahoma, northeastern North Carolina, and Virginia (see fig. 1). In determining the remainder of 
cotton fields rather than for the weevil because all fields were infested. It still remains to be seen 
existence in these extreme portions of the cotton belt. 
For the first time the States of Missouri and Kentucky were invaded by the weevil and all fie 
infested. 
The gain west of the Mississippi River is very nearly equal to that east of the river. However, # 
15,700 square miles in North Carolina. 
e gain in Texas was 10,386 square miles, which practically extends the line to that of 1915, th 
that year being thus regained. : 
In Oklahoma almost the entire cotton area is infested, which is a gain of 10,536 square miles ove 
ditions prevail in Arkansas and a gain of 13,906 square miles is shown. L 
In Tennessee several new counties were invaded in the western portion along the Mississippi Rive 
miles is shown. 
The entire area of cotton production in Georgia is infested and South Carolina is also totally infest. 
In Texas the line extends from western Valverde County to Mertzon in Trion County. It the 
City on the west about midway through Sterling County, thence curves slightly eastward to Colorado 
Foch in Scurry County. From here it proceeds across the extreme northwest corner of Fisher Couw 
east corner of Kent County, then turns northward through the west part of Stonewall County, passing | 
County direct to Paducah in Cottle County. Bending eastward again, the line passes between the s 
and Goodlett in Hardeman County, leaving the State at about the middle of the nort th 
In Oklahoma the line enters the State just east of Eldorado in Jackson Co a 
eastern Page of Greer County and passes about 12 miles west of Elk City 
Strong City in Roger Mills County and bends eastward to Leedey in Dewey 
county and passes through the southeast corner of Major County to Enid in n| e nort i ugh 
Ford in Noble County, then to Wynona in Osage County. From there it goes due eas er of Washington and the 
south end of Nowata Counties to about half way between Vinita and Big Cabin in re king a southerly direction 
through the eastern part of Mayes County to Gideon in Cherokee County, then eastward through t thern part of Adair County. 
In Arkansas the line enters the State at Cincinnati in Washington County and goes east to Fay ontinuing due northeast 
through the north end of Madison County and the southeast corner of Carroll County, dividing Boone nd going through Oakland 
il throughout the terri- 
n Texas, southwestern 
search was for the last 
e weevil can maintain 
ase States were found to be 
est gain in a single State is 
lost by the weevil anes 
P actically the same con- 
anda gain of 8,729 square 
ward, passing Sterling 
County and onward to 
just touches the south- 
Peacock and across King 
rer of Childress County 
































5 = 



In Missouri the line enters the State at Bakersfield in the southeast corner of Ozark County and ex 
of Howell County to St. Elmo in Oregon County, continuing a little northeast through the centers 0 
in Stoddard County. It then goes due east through Champion in New Madrid County, continuins 
Mississippi County. h 
In Kentucky the line enters the State at Columbus in Hickman County and then runs southeast 
southwest corner of Graves County into Tennessee. No cotton was grown north of this section in Ken 
In Tennessee the line extends through the extreme northwest corner of Weakley County, entering 
tree. In Henry County it runs eastward to Whitelock and then turns southward and enters Benton 
continues southward, enterirg Perry County along the Tennessee River east of Cuba Landing. la P 
Alden, or about the center of that county, ana then turns eastward, entering Hickman County at 
ough the southern portion 
Butler Counties to Dexter 
st Prairie and Belmont in 
n and crosses the extreme 
ounty just south of Elm- 
st east of Mansfield. It 
mty the line continues to 
Tt runs out of Hickman 
bu. runs southeast through 
Irews. In Marion County 
attanooga. From Chatta- 
and through the extreme 
m turns eastward to Madi- 
oe County, entering Polk 
st of Copperhill. 
e county, entering Gilmer 
ove the 1920 line through 
It crosses the county 
am County below Aerial. 
eme northern portion of 
ll and Lincoln Counties to Winchester in Franklin County and enters Marion County just sou h ¢ 
nooga the line then turns northward to Cisco, running just west of the White Oak Mountain through Jam 
southern corner of Meigs County and entering McMinn County just south of Rock Creek. At Cisco the 
sonville in Monroe County, entering the county just east of Niota. The line then turns south throv 
County just west of Ironburg and, continuing south through Polk County, runs into Georgia about four 
Tn Georgia the line enters Fannin County west of Cad, continuing due south through the western p 
County just east of Cohutta Mountains. It goes south, joining the 1920 line at Ellijay, then eastward 
the southern portion of Fannin County, where it rejoins the 1920 line at the northwest corner of Lump 
just north of the 1920 line, entering White County south of Church, and continuing eastward, entering 
Going eastward through this county, it passes through Hollywood and thence to the border througt 
Stephens County. ap ise 
_ The line touches the South Carolina border in the western comer of Oconee County and continu s B 
which is the limit of cotton, to Polk County in North Carolina. i 
In North Carolina, the line enters the State just east of Tryon in Polk County. It then runs nor 
northeastward, passing one mile northwest of Union Mills in Rutherford County, continuing northeasty 
84790°—22 : 
vard along the State line, 
eh Polk County and then 
ough the southern portion 

