ENTOMOLOGY AND PLANT QUARANTINE 
11 
mout. All ro^iilar means of transportation shared in the increase, and, in 
addition, 198 equivalent carlots were moved by steamer to seaboard markets. 
This is the first season that ocean transportation has been available from 
valley ports. 
Table 5 shows the shipments of frnit from this area for the seasons 1932-33 
to 1936-37. 
Table 5. — Equivalent carlot shipments of citrus fruit from the lower Rio Grande 
Valley, Tex., and total production in stated years 
Shipping season 
By rail 
By truck 
By boat 
By 
express 
and 
passen- 
ger car 
Grape- 
fruit 
canned 
Com- 
mercial 
produc- 
tion 
Grape- 
fruit 
Oranges 
Grape- 
fruit 
Oranges 
Grape- 
fruit 
Oranges 
1932-33 
2,897 
1,748 
4, 617 
4,262 
15, 616 
230 
114 
225 
600 
2, 729 
880 
1.236 
1,731 
1,454 
2, 578 
586 
877 
1,095 
1, 182 
2, 351 
101 
99 
239 
267 
532 
127 
240 
1, 131 
1.682 
6,702 
4, 821 
4.314 
9, 038 
9,447 
30, 701 
1933-34 
1934-35 
1935-36 
1936-37 
176 
17 
CANNING PLANTS 
The grapefruit canning industry consumed 25 percent of the grapefruit pro- 
duced. This amounted to 6,702 equivalent carlots. Practically all the plants 
were equipped with steam sterilizers for sterilizing canning-plant debris. 
This equipment was designed by workers in the Bureau in order to kill any 
larvae that might have been in fruit sent to a cannery. The increase in the 
volume of fruit processed since 1932 is shown in table 5. 
JAPANESE BEETLE QUARANTINE AND CONTROL 
TRAP SCOUTING IN NONREGULATED TERRITORY 
Trap scouting for the Japanese beetle was carried on during the summer of 
1936 in 324 towns and cities in 19 States, an increase of 111 communities and 
6 States over those trapped in the previous year's annual survey of non- 
regulated territory. Approximately 103,500 traps were set, doubling for the 
second consecutive year the number of traps set as compared v/ith the previous 
summer's trapping program. This extensive survey was made possible by the 
use of 90,000 lightweight, collapsible traps, developed by project personnel and 
manufactured at the Bureau's warehouse in Pennsylvania. Savings of 75 
percent in manufacturing cost, 80 percent in freight cost, and 25 percent in 
set-up and removal expense were effected by the use of these traps. 
Results of trapping in 1936 disclosed 36 first-record infestations. 16 of which 
were in Maryland, 3 in West Virginia, 2 each in Georgia, Indiana. Kentucky, 
North Carolina, Ohio, and Virginia, and 1 each in Maine, ]\Iichigan, New 
York, Pennsylvania, and Tennessee. With exceptions of first-record infesta- 
tions at Jessups, Millersville, New Market, Point of Rocks, and Riviera Beach, 
Md., Grafton and HoUidays Cove, W. Va., Sharon, Pa., and Brewer, Elaine, 
all these initial finds involved fewer than 10 beetles each. Beetles were caught 
in 108 communities in which incipient infestations had been determined. 
Trapping in 183 cities and towns gave negative results. 
Initial trapping in four localities in Tennessee resulted in the capture of 
four beetles at Bristol. 
Capture of one beetle each in Augusta and Savannah was the net result of 
trapping resumed in Georgia after a lapse of 4 years. 
In Greenville, S. C., trapping revealed a reduction from 89 beetles in 1935 
to .38 beetles in 1936. All but one of these appeared in the area where delayed 
applications of h?ad arsenate were made in the spiiug of l!).'-!6). In Charleston, 
S. C, where trapping was with negative results in 1935. 11 beetles were caught. 
These were scattered in the southeastern section of the city near the water 
front and freight terminals, a .section in which lend arsenate was applied in 1931. 
None of the 1936 finds were in the blocks previously treated. 
Traps set in .35 communities in North Carolina revealed infestations in 15 
localities. Small infestations failed to reappear in seven towns. The catch at 
Winston-Salem showed a reduction from 109 beetles in 1935 to 37 beetles this 
