nematodes, and to cooperate with the Governments of Canada 
and Mexico or local Canadian or Mexican authorities to control 
incipient or emergency outbreaks of insect pests or plant 
diseases. Another section of the Act authorizes the Secretary 
to provide for the inspection and certification of domestic 
plants and plant products to meet the phytosanitary require- 
ments of foreign countries. 
The Honeybee Act (7 U.S.C.A. 281) prohibits the importation 
into the United States of all adult honeybees of the genus Apis. 
The Terminal Inspection Act (7 U.S.C. 166) provides, under 
specified conditions, for inspection by State plant pest officials 
at mailterminals of plants and plant products moving interstate. 
This permits the States, in cooperation with the Post Office 
Department, to protect themselves against the entry of infested 
or infected plants or plant products through the mails. 
Plant Quarantine Inspection represents a vital protection to the Nation's 
crops, forests,and ornamentals from invasion by foreign plant pests and 
diseases. Alsothe inspection and certification for export of agricultural 
commodities is an important service in maintaining expanding foreign 
markets for U. S, farm products. The frequency of foreign arrivals, 
the number of travelers and the volume of goods entering the country -- 
allare factors that establish the level of plant quarantine services neces- 
sary to prevent the introduction and spread of injurious foreign pests. 
Activities of the Plant Quarantine Division are performed inclose 
cooperation and collaboration with the Bureau of Customs, Immigration 
and Naturalization Service, and the U. S. Public Health Service, _On the 
Mexican Border, inspectors of the four Services are mutually authorized 
to inspect arriving passengers at primary inspection points and to refer 
to the appropriate agency ata secondary clearance area those passengers 
requiring more detailed inspection. 
The Division works closely with researchdivisions of ARS for the purpose 
of developing practical and effective means .of fumigation, sterilization, 
heat or cold treatment, or other means of treating nursery stock, other 
restricted items or general cargo. Such treatments must be effective in 
destroying the accompanying pests without injuring the product or article. 
Every major element of the Plant Quarantine Division workload increased 
during Fiscal Year 1964, reaching an all-time high. Total workload was 
up 20.2 percent over the previous year. One contributing factor was a 
3 millien increase in the number of persons entering the United States 
from foreign countries. Even more significant increases occurred in 
other workload elements, including number of carriers, volume of 
incoming cargo inspected and certification of U. S. agricultural products 
for export. 
