é eae | =%- , 
= Sra 
- 
THERM FIELD oROP INSECT INVESTIGATIONS (Continued). 

























reak of Matama aretliaces during the past Season seems to 
on the most severe for many years. In parts i. Arkansas and Miss- 
all of the green portions of the cotton plants were destroyed in 
» Ordinarily this outbreak would have attracted more attention. 
suliar conditions surrounding the cotton crop of the present vear, 
", were such that the insects’ injury was not generally considereu 
ov 
La 
pe ‘ined 
* 
TROPICAL AND SUBTROPICAL INSECT INVESTIGATIONS. 
CO. L. Marlatt, In Charge. 
_E. S. Woglum presented at the recent Fruit Growers Convention at 
tes a very interesting paper on fruit injury during fumigation, 
that such injury is due principally to the hydrocyanic- -acid gas 
through abrasion or accidental injury ‘to the fruit rather than 
tions of sulphuric acid. 
W. W. Yothers is reporting some very satisfactory demonstration 
»results in the control by sprays of the white fly and rust mite. 
os. R. Horton’s work in the New Orleans citrus district, princi- 
with the Argentine ant, is developing control results of much prom- 
r. J. D. Neuls will conclude his life-history studies of date scale 
mS @t Mecca by the end of this year and will then resume his former 
@S5 an assistant in the citrus fruit laboratory at Pasadena with Mr. 
| this laboratory is the one formerly located at Whittier. 
EH. R. Sasscer, formerly with this service in the Bureau of Entom- 
is. now making a trip of inspection for the Federal Horticultural 
yaich will include all the ports of entry along the Mexican border . 
United States, in relation to the Mexican fruit-fly quarantine and 
ter visit the special experimental stations under tropical and sub- 
g1Cal insects at Mecca and Pasadena, concluding his trip with an in- 
tion of the Department’s introduction garden at Chico, Cal., and after 
return probably several introduction gardens in Florida. 
HE. W. Rust, a graduate of Leland-Stanford University and for a 
an assistant of Mr, Townsend’s in Peru, has joined the inspection 
} Of the Federal Horticultural Board, and will assist Mr. Sasscer 
Mr. Sanford, the latter with the Bureau of Entomology, in this work. 
MEDITERRANHAN FRUIT-FLY INVESTIGATIONS. 
Messrs. Back and Paberton have submitted several papers reporting 
‘s in this investigation; These papers will shortly appear as De- 
~ bulletins or in the Journal of Agricultural Research, The in- 
tion has been broadened to include the melon fly (Batrocera cucur- 
ae Ckil. ), and the fruit-fly quarantine of Hawaii has also been reis- 
to include this latter insect with the Mediterranean fruit fly. Mr. 
, formerly in the Washington service, but stationed for the last 
s in Honolulu as office aide to Dr. Back, has returned to the. 
( 1 service, 
