SERVICE AND REGULATORY ANNOUNCEMENTS 6 
COMMON PESTS INTERCEPTED 
Most of the pests found during the inspection of plant material are readily 
recognized as species already well established in this country. Representative 
samples of such forms are taken rather frequently and checked to make sure that 
similar forms not yet established are not being overlooked. Records are made of 
a part of the findings of some of these common pests and are summarized in this 
report to give a more accurate picture of the work. The numbers following the 
names of the pests indicate the number of countries of origin included and the 
number of interceptions recorded. 
INSECTS 
Common insects intercepted 10 or more times, and recorded, included Acan- 
thoscelides obtedus (10-55), Ahasverus advena (11-23), Anthonomus eugenii 
(1-5,002), Aphis gossypii (6-13), Araecerus fasciculatvs (10-24), Aspidiotus cy- 
anophylli (6-68), A. hederae (2-79), A. lataniae (13-336), Carpocapsa pomonella 
(5-104), Cerataphis lataniae (13-47), Chrysomphalus aonidum (9-38), C. dictyo- 
spermi (11-306), Coccus hesperidum (11-46), Diaspis boisduvalii (16-171), D. 
bromeliae (2-13), Ephestia cavtella (8-12), Etiella zinckenella (1-16), Gnorimo- 
schema operculella (12-226), Heliothis arrnigera (5-9,591), H. virescens (2-160), 
Hippodamia convergens (1-27), Howardia biclavis (9-12), Keiferia ly coper si cella 
(1-7,673), Laphygma exigua (1-137), L. frugiperda (1-477), Lasioderma serricorne 
(6-37), Lepidosaphes beckii (22-104), L. ulmi (2-14), Murgantia histrionica (1-92), 
Myzus persicae (7-11), Oryzaephilus surinamensis (7-18), Parlatoria pergandii 
(9-17), Pinnaspis minor (5-22), Plodia interpunctella (3-25), Pseudococcus 
adonidum (4-27), P. brevipes (7-23), P. citri (5-24), Rhizoglyphus echinopus (7-44), 
Saissetia hemisphaerica (10-90), S. oleae (11-19), Selenaspidus articulatus (16-40), 
Sitophilus oryza (8-14), Stegobium paniceum (6-12), Thrips tabaci (6-11), Tri- 
bolium castaneum (10-18), Typhaea stercorea (10-35). 
In addition to the listed species of common insects, there were 4,170 intercep- 
tions belonging to 474 different species which were not deemed to be of sufficient 
importance from the plant-quarantine viewpoint to warrant listing them by 
species. Total of common insects interecepted, 29,523. 
DISEASES 
Common plant diseases intercepted 10 or more times, and recorded, included 
Actinomyces scabies (17-491), Alternaria brassicae (7-13), A. solani (2-12), A. 
tomato (1-1,696), Aspergillus niger (15-469), Bacillus carotovorus (5-10), Bac- 
terium phaseoli (1-38), B. vesicatorium (3-1,478), Botrytis cinerea (9-15), Cephalo- 
thecium roseum (4-39), Cercospora beticola (2-16), C. rosicola (2-11), Cladosporium 
fulvum (2-42), Colletotrichum circinans (3-733), C. gloeosporioides (14-728), C. 
lindemuthianum (4-78), C. orchidearum (8-18), Diplodia natalensis (8-43), Elsinoe 
fawcettii (13-38), Erysiphe graminis (3-14), E. polygoni (1-156), Gloeosporium 
limetticolum (12-42), G. musarum (2-22), Helminthosporium allii (7-1,915), 
Heterodera marioni (8-29), Mycosphaerella brassicicola (6-24), Oospora citri- 
aurantii (7-60), 0. lactis parasitica (6-43), 0. pustulans (3-10), Penicillium 
digitatum (9-53), P. italicum (7-17), Phoma destructiva (4-69), Phomopsis citri 
(12-27), P. vexans (6-12), Puccinia allii (S-12), P. graminis (12-44), P. purpurea 
(1-19), Rhizoctonia solani (19-755), Rhizopus nigricans (17-802), Sclerotinia 
sclerotiorum (11-28), Sclerotium oryzae (7-17), Sphaceloma fawcettii (18-23), 
Spondylocladium atrovirens (11-25), Ustilago zeae (1-24), Venturia inaequalis 
(10-41), Verticillium cinnabarina (12-46). 
In addition to the listed species there were recorded 532 interceptions of 72 
other species of common pathogens, making a total of 16,691 recorded intercep- 
tions of common diseases. 
INCOMPLETELY DETERMINED PESTS 
Many of the pests found by inspectors cannot be determined because they are 
new to science, or the material is inadequate or is not in condition or in the right 
stage to make an accurate determination possible. 
INSECTS 
Among the incompletely determined insects intercepted during the year were 
the following fruitflies: Anastrepha sp,, probably fraterculus, taken at Baltimore, 
Brownsville, El Paso, Laredo, and New York in grapefruit, mango, orange, peach, 
and pear from Argentina, Canal Zone, Mexico, and Trinidad; Anastrepha sp., 
probably ludens, at Laredo in railway car from Mexico; Anastrepha sp., probably 
mombinpraeoptans, at Laredo in mango from Mexico; Anastrepha sp., perhaps 
striata, at Laredo in guava from Mexico; Anastrepha sp. at Brownsville, El Paso, 
Laredo, Miami, New York, San Diego, and Tampa in grapefruit, guava, mango, 
orange, and roseapple from Argentina, Colombia, Costa Rica, Guatemala, 
Jamaica, Mexico, and Trinidad; Ceratitis sp., probably capitata, at Newport News 
