SOUTHERN FIELD CROP INSECT INVESTIGATIONS. 
W. D. Hunter, In Charge. 






a ‘Mr. D. L. Van Dine arrived in Washington near the end of No- 
‘¥v ember and will remain for several weeks. 
et Mir. A, H. Jennings will be on furlough for the month of December 
on. meocount. of ill health, 
. Mr. H. H. Kimball returned to Agricultural College, Miss., from 
New Orleans on the 15th of November. He will make a local malaria 
tosqui to Survey of the vicinity of the College during the winter. 
BS: tr. M5 bs McDonough completed the determination of the boll 
weevil dispersion in Florida during the month, 
‘ee 
§ 
oy 
y 
x. D. Smith and J, U. Gilmore, who arrived in Washington < on No- 
I yember 4, were compelled to return to their homes on November 27 on 
—&ccount of iliness, 
‘ Mr. B. R. Coad, in charge of the Tallulah Laboratory, was in 
presbington for a conference during the month. 
ee Ur. T, E, Holloway has declined a position in the Hawaiian Sugar 
Planters’ Experiment Station. 
| Mr. 1 C. Morgan visited the tobacco districts cf North Carolina 
and Florida during the month, 
TRUCK CROP AND STORED PRODUCT INSECT INVESTIGATIONS. 
F. H. Chittenden, In Charge. 
 @. E. Bensel, collaborator, has teen appointed Supervising Agri- 
_ culturist of all of the Southern California Sugar Companies for the 
_ purpose of improving the present cultural method of the sugar beet 
crop, and to supervise the combating of various enemies affecting 
this crop, especially nematodes. His headquarters are Los Angeles, 
Cal, 
4 In the work on the potato-tuber moth, which has been carried on 
for some time, thirteen parasites and one hyperparasite have been 
studied by Mr. John BE. Graf, 
; In the District of Columbia, Dr. Chittenden has found that the 
~abutilon moth (Cosmophila erosa) has not appeared on abutilons at 
all; a few have been found on hollyhocks; and four individuals were 
taken from morning-glory. Two of these looked perfectly healthy when 
received, were full grown, and had the characteristic markings on the 
back. All four died owing to the attack of the minute egg-parasite 
Litomastix (Copidosoma) truncatellum, This latter species has been 
: very abundant during the year and has perhaps been more instrumental 
in keeping down the numbers of the cabbage looper (Autographa bras- 
sicae Riley) than any other single cause. 

