L2 ANNUAL REPOBTS or DEPARTMENT OF AGBICULTUBE, I 
Ml>( BLLAWBOUS 
canning PLANTS 
Eleven cltroa-cannlng plants were in operation during part of the shipping 
1834 35. These plants used 164292 tons pefrnit, most of it 
g Juiced. This tonnage roughly equals 1,086 ears. 
EXI'KKIMKN IAI. BPBATTNO 
This project carried on spraying experiments this season in cooperation with 
be Bureau of Chemistry and Soils and the Bureau of Plant Industry. The 
purpose of these experiments was to determine what effect, if any, tartar emetic 
had "ii citrus trees and fruit It is planned to continue these experiments 
hrough the coming season. 
WILD-HOST STUDIES 
As -»\. es of fruit flies arc frequently taken in traps in the valley. 
; ; is thought that these flies arc breeding in various local hosts. A study of 
•ho flora of the valley i>. therefore, being made and collections <>f fruits and 
plants are sent in to the laboratory daily. Examination in the held is also 
being made With the exception of one collection of Anastrepha sp. larvae, re- 
d as C< ming from tin- fruits of ca^ffis. these studios have all _ 
•no results. S 
WEST INDIAN FRUIT FLY AT KEY WEST, FLA. 
Cooperation has been continued with the State Plant Board of Florida in its 
effort to eradicate two forms of the West Indian fruit fly from the island of 
Key West As an aid in carrying on this work, an allotment of $36,000 was 
made available by the Public Works Administration, and the spraying, trapping, 
inspection, and fruit-removal work was materially increased. Some 2.<K>o traps 
svere used to detect the possible presence of the adult Hies, thus greatly In- 
tensifying the inspection. Fewer adults were collected than during the past 
year, and no immature stages of either Anastrepha a<i<lu*n Walker or A. -<)is- 
pensa Loew were found during the 10 months ended June 80, Indicating that 
definite progress has hern made in reducing the numbers of these Im 
DATE SCALE ERADICATION 
Inspection was continued over a smaller area during the year, a Considerable 
acreage having been dropped as free from scale during the fiscal year 1934. 
Further reduction in acreage WAS made in the eradication area during the 
present fiscal year. Clean-up work was completed in Arizona. No Parlatoria 
scale was found during the year. 
COACHELLA VALLEY 
During the year, G.107 palm inspections were made from ground and lad 
25,750 were made from the ground only; and 6,967 offshoots were certified for 
movement Leaf bases were removed from 29 previously infested palm-: •; 
previously Infested palms and \ adjacent ones were dug out ami desti 
and 'J..",!:; palms in or near previously Infested plant inu's were pruned to facili- 
tate Inspection. No ParUtforia scale has been found in the Coachella Valley 
sine- November 1981. 
IMPERIAL VALLEY 
la the Imperial Valley 4,478 palm inspections from ground and Ladders and 
14,545 from the ground onlj were made, and 856 offshoots were certified for 
movement. Leaf bases wore removed from 24 previously Infested palms; 2 
valueless palms were dug eat and destroyed an l 77 were pruned to facilitate 
Inspection. No infested palm was found during the year, as compared with n 
■■'aid on i property during th< fiscal year L984, and 7 on i properties In 
PBOEND DI8TRICT 
in the Ball River Valli Arizona .Mid other localities in Arizona 12 palms 
Inspected from ground nnd ladder- nnd 2,617 from the ground only. Pour 
