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| id Messrs, Sasscer and Sanford will, during the latter part of March and the 
m first of April, be in Flordia inspecting and certifying the stock for shipment 
at the Plant Introduction Gardens Miami and Brooksville. The pathological in- 
-spections of this stock will be conducted by Dr. Kauffman 
FOREST ENTOMOLOGY, 
A. D. Hopkins, Forest Entomologist. 
j ‘The falling of the catkins of the Carolina poplar at Washington and Falls 
' Church on March 21 indicates that the advent of spring this year is 15 days 
a earlier than it was last year. Since this date agrees exactly with the spring 
solstice, this may be taken as a normal spring as regards its advent. In the 
aa Carolina poplar and Lombardy poplar the catkins develop at the same time and are 
' reddish, while in the silver poplar (P. alba) they are gray and develop 12 days 
earlier. The cottonwoods have a yellow catkin which develops much later than 
that of the Carolina. [A. D. H.] 
S. A. Rohwer spent several days this month studying types of forest hymen- 
optera in Museums at Boston, Massachusetts and New Haven, Conn. He also visited 
the field station at Lyme, Conn., to confer with Mr. Champlain on rearing work 
of forest insects. 
TROPICAL AND SUBTROPICAL FRUIT INSECT INVESTIGATION 
GC. L. Marlatt, Entomologist in Charge.. 
Mr Mann has nearly completed his work for the time being in Guba, and will 
in the near future make a study of the black-fly conditions in the Bahamas. 
The appointments of Messrs. Fredrick W. Urich, Archibald H. Ritchie, Pat- 
ricio Cardin and Carlos &. Porter have been extended for another year, Gon- 
siderable valuable fruit fly and other material has already been received 
from these collaborators and more is expected next year. 
Miss Emily S. Reed has been appointed as Scientific Assistant to work under 
‘the direction of Mr. Morrison, Miss Reed is a recent graduate of Cornell Uni- 
versity, where she took a major in entomology, and has assisted in special work 
for Professors Comstock and Needham of that University. Wr. Ernest R. Barber 
advises that the Vedalia is now well established in New Orelans and that he has 
recently shipped to Mr. Moznette, Miami, Fla., a colony of fifty adult beetles, 
and will shortly send him some three hundred more. These shipments are for the 
purpose of controlling 4 mild outbreak of Icerya in the Miami section. Recently 
Mr. Barber has made trips in Mississippi, Tennessee, and Texas in relation to the 
contro] of the Argentine ant and the cottony cushion scale. 
TRUCK CROP INSECT INVESTIGATIONS 
F. H. Chittenden, Entomologist in Charge. 
Marion R. Smith, Scientific Assistant, who has been engaged during the year 
on investigations of snsects as carriers of truck-crop diseases, especially the 
mosaic disease and the wilt of cucumber, at Plymouth, Ind., and who has been ase 
sisting in truck-crop work at Baton Rouge, La., will resume his work in Indiana 
in April. 
W. T. Ham, of Pullman, Wash., Special Field Agent, is conducting extension 
work on truck-crop insects in the State of Washington, with headquarters at Pull- 
man. 
Boyd L. Boyden, Oxnard, Calif., Scientific Assistant, who resigned from the 
