(2 ANNUAL REPORTS OF DEPARTMEN1 01 AGRICULTURE, L952 
porters through refusal of shipments, thus permitting them to make 
commitments with assurance thai any bulbs shipped from Holland 
w ould be permit ted cm ry here. 
Major Revamping of Plant Quarantines and Regulations 
Under \\ ay 
Bearings were held in 1951 affecting 31 plant quarantine orders 
and regulations. Decisions were reached on actions to be taken on 
each oi these. Legal actions arc in progress to amend the respective 
quarantines in the light of the testimony al these hearings. 
[ncrease in Plants and Plant Products Certified for Export 
Certificates to comply with the sanitary import requirements of 
foreign count ries were issued to cover 26,50< I export shipments. These 
covered 10,400,000 containers of domestic plants and plant products 
going to 114 foreign countries. This was a 30 percent increase over 
the fiscal year L951 in export certificates issued. The increase was 
largely due to increased citrus exports to Europe, flour exports to 
Venezuela, and wheat exports to Mexico. 
Heavily Infested Plane Treated at Honolulu 
An incident that occurred at Honolulu illustrates the possibilities 
of insect spread by means of aircraft. On the evening of May 13, 
L952, a B. C. P. A; plane arrived in Hawaii Erom the Fiji [stands with 
thousands of leaf hoppers aboard. The pilot stated that the plane took 
off at night from Naudi Airport in a veritable "snowstorm" of leaf- 
hoppers. The plane was sprayed with an aerosol bomb several times 
while in flight. Passengers swatted hoppers during most of the trip. 
However, numerous hoppers were still alive in the belly of the plane. 
There were between five and ten thousand live and dead leafhoppers 
aboard on arrival. Two heavy dosages of agricultural aerosol were 
applied as soon as the plane landed. The lea fhopper was idem ified as 
Perkinsiella vitiensis Kirk- (Delphacidae). This species is the prob- 
able vector of the Fiji disease oi sugarcane in Fiji and Samoa, a dis- 
ease not known to occur in Hawaii. It is the opinion of an official of 
the Hawaiian Sugar Planters' Association that should this disease 
become established in Hawaii it would probably necessitate a com- 
plete change in the production program. The present high-yielding 
varieties might have to be replaced with low-yielding varieties resist- 
ant to t he disease. 
Spanish Potatoes Found Infested \\ it Ii Golden Nematode 
mi li potatoes arriving at the ports of Ne\* \ ork and San Juan 
w< re a maj< r problem during the year. Five shipments of 300,000 
bag arriving al N i w York from the Spanish Provinces of AJava, 
Burgos, Palencia, I. eon. and Almeria were released after inspection. 
Another three shipments of 26,700 bags and 1,500 crates arriving at 
New Yoik Prom the Provinces of Valencia and Barcelona were refused 
« n! i\ because they were found to contain cysts of the golden nematode. 
At San Juan, a shipment of 600 bags oi potatoes from the Canary 
[slands also was found infested with the golden nematode and was 
