UNITED STATES DEPARTMENT OF AGRICULTURE 

 Agricultural Research Service 



LIST OF INTERCEPTED PLANT PESTS, 1968 

 (Pests Recorded From July 1, 196 7, Through June 30, 1968) 



Compiled by 

 David H. Girard 

 Plant Quarantine Inspector 



INTRODUCTION 



This report of the 55th year of plant quarantine work in the United 

 States summarizes the records of plant pests found in, on, or with 

 plants, plant products, and carriers (1) imported into or entering the 

 United States or the offshore possessions, (2) offered for entry but 

 refused, (3) in quarters or stores of planes and ships, (4) entered for 

 immediate transportation and exportation in bond, (5) in domestic ship- 

 ments to the mainland from the States of Alaska and Hawaii, the American 

 Virgin Islands, the Commonwealth of Puerto Rico, Guam, and other posses- 

 sions, or (6) in preclearance inspection in the Bahamas and Bermuda. 



Insects, mites, mollusks, diseases, and nematodes are tabulated 

 separately. The pests listed are of known or potential importance to 

 agriculture and not reported or widely distributed in the United States. 

 Some common organisms are included if they are new to the country of 

 origin or the host plant. 



Records were made from identifications received during the fiscal 

 year 1968 and include some interceptions from previous years that were 

 not determined until this year. Most insect and mite identifications 

 are made by specialists of the Entomology Research Division and Plant 

 Quarantine Division (both of the U.S. Department of Agriculture) and the 

 Department of Entomology of the U.S. National Museum of the Smithsonian 

 Institution. Snail identifications are made by workers in the Plant 

 Quarantine Division and the Division of Mollusks of the Smithsonian 

 Institution. Disease, nematode, and host identifications are made by 

 personnel of the Plant Quarantine Division and the Crops Research Division. 



Scientific names of insects and diseases are reviewed by specialists 

 of the Plant Quarantine Division who assist in compiling the list. Nema- 

 tode names are checked in Nematology Investigations and host names in 

 the New Crops Research Branch. The common names given for hosts are 

 usually those shown in Standardized Plant Names . Every effort is made 

 to conform to the International Rules of Nomenclature. 



