o 
v ^ 
\ 
BUREAU OF ENTOH$0\OGY AND PLANT QUARANTINE 
A 
War conditions resulted in reduction or elimination of interceptions from some 
countries, but the number of interceptions listed in the detailed table shows less 
change than has resulted from other factors in times past. 
NOTES ON INJECTS INTERCEPTED 
4* 'Y / FRUITFLIES 
Anastrepha ffatez£u2uj; J wa& intercepted at Boston in grapefruit in stores from 
Argentina and Trinidad. The Mexican fruitly (Anastrepha ludens) was inter- 
cepted 173 times in 9 different hosts in baggage, quarters, and stores from Mexico. 
A. mombinpraeoptans was taken 35 times in 3 different hosts in baggage, 
mail, quarters, and stores from 7 countries. The dark fruitfly (A. serpentina) was 
taken 13 times in 4 hosts in baggage, mail, and quarters from Colombia, Mexico, 
and Trinidad. A. suspensa (larva) was intercepted in grapefruit and guava in 
baggage 9nd stores from Cuba, Haiti, and Puerto Rico and (puparium) in bag of 
guavas and genips in baggage from Puerto Rico. The Mediterranean fruitfly 
(Ceratiiis capitata) was intercepted 10 times in 8 different hosts in baggage and 
stores from 6 countries. The melon fly (Dacus cucurbitae) was taken at San 
Diego in string beans in quarters from Hawaii. The celery fly (Philophylla 
heraclei) was intercepted at New York in celery in stores from England. The 
apple maggot (Rhagoletis pomonella) was intercepted 4 times at Laredo in red haw 
and apple in baggage from Mexico. The papaya fruitfly (Toxotrypana curvicauda) 
was taken only once during the year, in papaya in baggage from Mexico. 
INSECTS OTHER THAN FRUITFLIES 
In addition to the usual insects of major importance, such as the pink bollworm 
(Pectinophora gossypiella) , the West Indian sweetpotato weevil (Euscepes post- 
fasciatus), the Asiatic rice borer (Chilo simplex), the East Indian bean pod borer 
(Maruca testulalis), the yam weevil (Palaeopis costicollis) , the citrus blackfly 
(Aleurocanthus woglumi), and the turnip gall weevil (Ceutorhynchus plenrostigma) , 
many of the insects in the detailed table have been intercepted for the first time, 
or for the first time on the host indicated, or for the first time from the country 
indicated, or are of special interest for some other reason. References to "first 
record" in these notes refer to our interception records only. The insects fall in 
different groups, cover a wide host range, and come from many parts of the world, 
e. g., Aonidiella comperei (Coccidae) (first record on grape and first record from 
Haiti), X anthophthalma concinnum (Coccidae) (first record for files), Bruchidius 
incarnatus (Bruchidae) (first record in broadbean and reported as seriously 
injurious to broadbeans in Egypt), Eurytoma pistaciae (Eurytomidae) (first record 
for files), Euxesta annonae (Otitidae) (first record in corn, also first record from 
Cuba and Bahamas), Limothrips denticornis (Thripidae) (first record on Helle- 
borus niger), and Mordellistena chapini (Mordellidae) (first record from Peru). 
NOTES ON PLANT DISEASES INTERCEPTED 
The data regarding completely determined pathogens included in the main 
table are readily found. However, attention is called to the fact that citrus 
canker (Bacterium citri) was intercepted on several hosts and from several coun- 
tries, the sweet orange scab (Elsinoe australis) continued to be found occasionally 
in citrus from South America, and that citrus black spot (Phoma citricarpa) , long 
known in the orient, is now established in South Africa and was found on citrus 
fruit from there. Lima bean scab (Elsinoe phaseoli), which is so common on 
shipments from .Cuba that it is listed among the common diseases, continued to be 
found more or less frequently. Helminthosporium allii, which occurs as dark 
mycelium and spores, especially on garlic from Mexico, is another pathogen 
which has been found so often that it is listed as a common disease. A fungus 
new to our interception lists is Dendrodochium lycopersici, heretofore known from 
Belgium, found on tomatoes from Mexico. One or more of the oriental strains of 
the lespedeza rust (Uromyces lespedezae-procumbentis) was intercepted again with 
seed from Japan. The so-called Dutch elm disease (Ceratostomella ulmi) was 
found again on several lots of elm crating from England. A new disease tenta- 
tively determined as caused by Sclerotinia kerneri, a fir pathogen described from 
Austria and not known to occur in North America, was found on Christmas trees 
from Newfoundland and on greens from Nova Scotia. An examination of the list 
of fungi found on orchids shows that they continue to furnish a variety of new 
records. 
