34 ANNUAL REPORTS OF DEPARTMENT OF AGRICULTURE, 1934 
YUMA DISTRICT 
In the city of Yuma and vicinity, 2,172 palm inspections were made, and leaf 
bases were removed from 14 previously infested palms. No Parlatoria scale has 
been found in the Yuma district for the past 3 years. 
QUARANTINE ON DOMESTIC NARCISSUS 
In the absence of a Federal appropriation for the enforcement of the narcissus 
bulb quarantine, the inspection required as a condition of interstate movement 
has been carried out by the nursery-inspection organizations of the various States. 
Prior to this fiscal year, the Federal Department was able to assign temporarily a 
few men employed on other projects to aid the States in such inspections when the 
State officers so desired. The retrenchment program in the Department forced 
the Bureau, beginning in 1933, to discontinue such assistance, and for the fiscal 
year here reported, therefore, inspections and certifications have been made 
entirely by State forces. A number of the State organizations are also carrying 
on their work with greatly reduced funds and have notified the Department that it 
is becoming difficult if not impossible for them to carry out the necessary narcissus 
inspections. 
The nursery inspectors of the various States reported that during the summer 
and fall of 1933, they had made inspections of 305,875,898 bulbs of all types, an 
increase of about 1 percent over the number reported the previous year. About 
59 percent of the bulbs inspected in 1933 were Paper White and other polyanthus 
varieties commonly grown in the South, a larger percentage than in 1932; and 
about 41 percent were of the daffodil type produced in the Northern States, a 
smaller percentage than in 1932. 
Of the bulbs inspected, 228,978,135 were certified as uninfested; 18,578,820 were 
fumigated with cyanide and certified, and 15,291,197 were treated with hot water 
and certified after treatment. In some cases the fumigation or hot-water treat- 
ment was precautionary and therefore did not necessarily represent infestation 
in the stock concerned. This is especially true with respect to fumigation in 
several of the leading daffodil-growing sections of the country where fumigation 
with calcium cyanide dust constitutes routine practice, owing to the general and 
scattered establishment of the narcissus bulb fly. The numbers of bulbs certified 
indicate the supplies available for shipment so far as adequate inspection and 
freedom from pests are concerned. The greater proportion of such bulbs, however, 
are replanted by the growers, who estimate that only from 20 to 30 percent of the 
bulbs are involved in interstate commerce during any one year. 
Infestations with the bulb eelworm (Anguillulina dipsaci, formerly called Tylen- 
chus dipsaci) were reported in 1933 in one or more plantings in each of the follow- 
ing States: California, Florida, Georgia, Illinois, Maryland, Michigan, Missouri, 
New Jersey, New York, North Carolina, Ohio, Oregon, Tennessee, Virginia, and 
Washington. In addition to the States reporting it in 1933, this species had 
previously been reported as occuring in Alabama, Indiana, Kansas, Kentucky, 
Mississippi, Rhode Island, Utah, and Wisconsin. Some of these properties on 
which bulb eelworms were found have not since been reported as inspected, and 
infestation may possibly still be persisting in some of them. 
Greater bulb flies were again reported in California, Michigan, New York, 
North Carolina, Ohio, Oregon, Pennsylvania, and Washington. They have also 
been found in previous years in Illinois, Rhode Island, Utah, and Virginia. 
BLACK STEM RUST QUARANTINE 
Under the black stem rust control program, the Department is cooperating with 
13 grain-growing States of the Middle West in the destruction of those kinds of 
barberries that spread the rust to grainfields. The barberry quarantine was 
established to prevent the shipment of susceptible barberries into those States. 
Under its provisions, nurserymen who grow only rust-resistant species are issued 
permits under which such resistant species may be shipped into the protected 
States. Such permits arc required for the shipment into the 13 States concerned 
of all kinds of barberry and mahonia plants except the Japanese barberry (Ber- 
beris thunbergii) , which is immune to rust infection. 
At the present time some 26 species of Berberis and Mahonia plants arc known 
to be either entirely immune to black stem rust or so resistant that they could not 
be a factor in the spread of the rust. More than 100 species and varieties are 
susceptible to black stem rust attack. These species cannot be shipped into the 
protected States. In addition to these groups, about 17 species and varieties are 
