52 
PLANT QUARANTINE AND CONTROL ADMINISTRATION [April-June, 
The work of fruit destruction and spraying at the height of the season 
required the services of upwards of 5,000 men, of whom 250 or more were 
directors of work, the rest laborers, and of all available trucks, spraying ma- 
chinery, etc., secured by loan and purchase and the establishment of a depot 
of machines and supplies which rivaled war conditions. The progress in both 
the ciean-up work and the spraying activities is shown in Table 2. 
Table 2. — Progress of eradication measures, April 6 to June 80, 1929 
Apr. 6 to 
May 31 
June 1 to 
30 
Total 
Clean-up: 
Citrus- 
Cleaned first time 
acres.. 
86, 336 
33, 913 
120, 249 
Cleaned second time 
do.... 
77, 702 
62, 357 
140, 059 
Total citrus cleaned and recleaned 
do.... 
164, 038 
96, 270 
260, 308 
Citrus fruit destroyed. 
boxes.. 
563, 067 
15, 433 
578, 500 
Cultivated noncitrus — 
Cleaned first time 
acres.. 
10, 000 
84, 527 
94, 527 
Cleaned second time 
do.... 

1,458 
1,458 
Properties cleaned 
Properties recleaned 
Clean-up personnels- 
number. . 
8,548 
i 
do... 
2, 847 
Inspectors 
Foremen .. .. 
do 
49 
52 
do.... 
264 
258 
do.— 
3,290 
2,172 
Spraying: 
Area sprayed l 
acres.. 
69, 306 
293, 359 
362, 665 
Materials used- 
Sugar -- 
pounds.- 
281, 600 
498, 603 
780, 203 
Molasses 
gallons.. 
25, 761 
27, 703 
53, 464 
Lead arsenate . 
pounds.. 
32, 896 
56, 490 
89,386 
Spraying personnel- 
Inspectors 
- number. . 
6 
14 
...do . 
38 
59 
Laborers 
do- 
211 
471 
i In this table, an acre sprayed three times, for example, is counted as 3 acres. 
ELIMINATION OF SUMMER HOST FRUITS 
It was agreed by State and Federal authorities and others in interest that 
the program which had been adopted in the case of the Mexican fruit-worm in- 
vasion in the lower Rio Grande Valley was essential to eradication of the 
Mediterranean fruit fly in Florida, namely, the establishment of a summer star- 
vation period within the infested and protective zones during which there would 
be a complete elimination of all host fruits and vegetables in a stage of growth 
attractive to the fly, and, in lieu of such source of normal food, to supply the 
flies with an attractive substitute in the form of the sweetened poison bait to 
which reference has already been made. The effectiveness of this method has 
been fully demonstrated in the work so far, and the hope of eradication is 
largely centered on its intensification and continuance. It involves, however, 
cooperation on the part of every citizen of the State, and the acceptance by such 
citizens of very material sacrifices, in as much as it will mean, if success is 
to be achieved, the elimination — grubbing up or cutting down — of the trees or 
shrubs ripening fruit during the starvation period, as well as the prohibition 
of the growth of host vegetables during that period. This need of the destruc- 
tion of plants comes from the impracticability which has been fully demonstrated 
of the daily or weekly removal of ripening fruits and vegetables from such 
areas. This giving up, during the period necessary to eradicate the fly, of cher- 
ished yard or garden plants and commercial or other plantings of the type 
indicated in the interest of the major citrus industry is recognized as a hard 
requirement of the citizens of the State, but one which seems to be absolutely 
necessary if the fruit fly is to be eliminated. 
CLEANING OF RAILWAY CARS AND BOATS AT DESTINATION 
Railway cars, boats, and other vehicles and containers which have been used 
in transporting restricted articles from Florida are required to be cleaned or 
disinfected at the point of unloading before being used again in interstate 
commerce. 
