28 AXXCAL KKI'OUrs OI- I)i:i'AlMMi:.\'l^ OF A(;inrULTrKK, 1937 
15<J Federal and 50 State inspectors were ('niploycd. This work, carrit'd on in 
more than 550 counties, covered the region from Texas. Oklahoma, and Missouri, 
east to the Athmtic, south to the (Julf, and north to i'ennsylvania and New Jer- 
sey. This activity has, it is believed, rather accurately delineated the infected 
localities in the eastern part of the Fnited States. The disea.se was f(»und for the 
first time in Tennsylvania and Indiana, in (»ne county each. Nursery areas were 
given lirst attention, as heretofore; the number of nurseries receiving environs 
inspection was more than twice that oi" any previous year. Of the 427* nurserie.s 
inspected in the infected States. 104 were found exposed, and the diseased trees 
on neighboring i)roperties were i)romptly removed from the vicinity of all nur- 
series except one. Mandatory orders have now been issued by several States re- 
(piiring the prompt removal of any trees infected with the phony peach disease. 
Nearly 18.000.(MH> i)each trees in connnercial plantujgs and home (tn hards were 
inspected; 140.^44 trees infected with the disease have been removed from 
(J.t>»."i properties. To protect accomi)lishments to date, follow-uji inspection on all 
known diseased properties is under way in the 1937 field season. 
The emergency relief project begun in r,>35 was continued and has accom- 
plished the removal of over G4.<MM(.(i(iO diseased, abandoned, and escaped peach 
trees from 11 infected States. The project was reduced 05 percent at the close 
of the fiscal year, having nearly accomplished its purpose in five States. 
Control work has progressed to the point where the disease is being pushed 
back from the outer rim toward the center of infection and the inten.sity reduced 
at the center. Affected States are cooperating by furnishing men or funds, or 
both, and standardized State quarantines are in effect which provide for ship- 
ping only stock produced in disease-free environs. 
Field headquarters for the projict were moved in March lU'M from Atlanta. 
Ga., to Little Rock, Ark. 
CONTROL OF PEACH MOSAIC DISEASE 
Activities of the Department to eradicate the virus disease of peacli trees 
known as peach mosaic have resulted, since the project was started as a co- 
operative Federal-State activity in 1935. in materially reducing the intensitj- of 
infection in many of the at^ected connnercial peach-growing areas. The results 
of the program in Colorado and I'tah are particularly significant. In Utah 
all known infected trees have been removed. In Coloiado approximat Ij- 3.»w>'> 
infectt^d trees were found and destroyed during the 1937 spring insi)Oction. 
Tliis is less than one-third the number found last yc^tr, and approximately 
one-ninth that of the previous year. This marked reduction of the di.^^ease 
in this area, which appears to be approaching commercial control, has restored 
the confidence of the peach growers of the State, as indicated by their carrying 
on an extensive replanting program. 
Control work was also carried on during the year in Arizona. California. New 
Mexico, and Texas. Extensive surveys were conducted in the six infected 
States, as well as all States bordering thereon, with the result that the disease 
was found for the first time in Oklahoma. One diseased tree, which liad been 
sliii»ped from an infected area, was found in Indiana, but no local spread was 
rei)orted. 
Since the control program was started in 1935, approximately .3().(K>0 diseased 
trees have been removed and over G.750.0(X) trees liave been inspected. During 
the year 27.4S(> infected trees were removed and nearly 3.()(H\(K)0 trees were 
inspected for the disease. This work lias hvvn carried on luider allotments 
from emergency reli(>f appropriation acts in close cooperation with plant-pest 
control officials of the affected States. 
A public bearing to consider the advisability of establishing a Federal 
quarantine, lield August 19. 193r>. resulted in the decision that, for the present 
at least. State regulatory action would suffice to prev(>nt the sjiread of peach 
mosaic, rniform State quarantines are in efTect. 
CITOUS CANKER ERADICATION 
The campaign of eradication of the citrus canker disea.M' conducted through- 
ont the citrus growing areas of Texas and Louisiana, which was expanded atul 
sfininlafed in 19:^.5 and 19.".n by allotments from th(* (Muergency relief apprctprin- 
fions su])pl(>menf ing regular ap])roprial ions, and by State funds, was con- 
finucfl on a similar in((>nsiv(> v;cale In 19.".7. In the 'J-year ]><M-iod sin<-e the 
relief allotments ba\e be(>n made availalile, 5S counties and jiiirislu^s in tlu>^e '2 
