10 ANNUAL REPORTS OF DEPARTMENT OF AGRICULTURE, 1933 
Data collected in the cooperative fall-infestation survey of 1932 were corn- 
piled by the Bureau of Entomology. In the 1-generation infested sections, sig- 
nificant borer increases over 1931 were noted in the southeastern Michigan 
counties south of Saginaw Bay and bordering on the bay and on Lakes Huron 
and Erie, as well as in the five additional counties in the southeastern corner of 
the State. Four other Michigan counties evidenced no change in borer popula- 
tion, and a decrease was registerdd in a single county of the State. Of 4 counties 
surveyed in northeastern Indiana 1 showed an increase, 1 a decrease, and the 
remainder no change in degree of infestation. More territory was covered by 
the survey in Ohio than in any other State. Northwestern Ohio counties border- 
ing on Lake Erie and for several tiers south into the corn-growing sections dis- 
closed no significant change in borers per hundred stalks over the previous year's 
records. Two counties bordering on Lake Erie in the northeastern corner of 
Ohio disclosed increases in infestation, as did 5 counties south of the older in- 
fested territory, and 3 northwestern counties. Champaign County, quite near 
the southern border of known corn-borer infestation, disclosed a rather generally 
distributed corn-borer population. In only one Ohio county was a decrease in 
infestation recorded. In Erie County, Pa., the only county surveyed in that 
State, examination of cornfields showed an increase in the number of borers per 
100 plants. Surveys of 8 northern lake counties of New York showed decreases 
in 2 counties and no significant change in the others. Increased infestation in 
New York counties was confined to Cattaraugus County in the southwest and 
Schoharie County in the Albany district. Three counties in the Albany district, 
and Wyoming County in the western part of New York, remained unchanged in 
borer concentration. 
In the 2-generation area, the infestation survey was extended to include recently 
infested territory in New Jersey, Connecticut, Massachusetts, Vermont, and New 
Hampshire. Data comparable to that obtained in the last fall survey, con- 
ducted in 1930 in the New England States, indicate considerable increase in the 
average number of borers per 100 plants throughout the area as a whole. Of the 
2 counties surveyed in Maine, 1 showed no change in infestation and the other 
evidenced an increase in borer concentration. Increases were recorded in all 
three counties previously surveyed in New Hampshire. In Massachusetts, 
Essex and Barnstable Counties registered increases, Middlesex, Norfolk, and 
Bristol Counties decreases, and Worcester and Plymouth Counties an unchanged 
status. The greater part of Rhode Island showed no appreciable change in 
degree of infestation, although an increase was noted in Newport and Bristol 
Counties. Report was also received of the initial infestation of Block Island, 
off the coast of Rhode Island. Spread of the insect from the mainland to the 
island required a moth flight of from 20 to 30 miles from the towns of Middletown 
and Little Compton in Newport County. Considerable increase in general infes- 
tation was evidenced in Connecticut. A comparison of data from 1930 discloses 
approximately the same degree of infestation in New Haven and Windham Coun- 
ties, and significant increases in Tolland, New London, and Middlesex Counties. 
A fivefold increase in larval population in Suffolk County, Long Island, was 
observed as a result of examination of the corn crop affected by the second-gen- 
eration borers. Combined injuries by the corn borer, corn ear worm, and Stew- 
art's disease resulted in a 50 percent reduction in the corn yield in this Long 
Island county. 
Throughout the 1-generation area surveyed the average number of borers per 
100 plants increased from 16.6 in 1930 to 31.7 in 1931 and 33.5 in 1932. Similar 
comparisons in the 2-generation area are 82.6 in 1929, 58.9 in 1930, and 91 in 
1932. No 1931 fall survey was made in the latter area. 
CONSOLIDATION OF HEADQUABTERS 
Motor-vehicle, spraying, and other equipment on hand at the Springfield, Ohio, 
western-area headquarters was moved to New Cumberland, Pa., where it is now 
stored in a large warehouse at the general depot of the United States Army. 
With the transfer of the general headquarters from South Norwalk, Conn., to 
Harrisburg, Pa., in May, the personnel at Springfield was transferred to either the 
New Cumberland depot or to the Harrisburg headquarters. Both the Springfield 
and South Norwalk buildings were vacated at the end of the fiscal year. 
Several members of the permanent corn-borer personnel were transferred from 
corn-borer to Japanese beetle rolls and assigned to enforcement activities under the 
Japanese-beetle quarantine. 
Quantities of tools, farm implements, sprayers, and motor vehicles were recon- 
ditioned and transferred to the pink-bollworm and gypsy-moth projects. 
