SS. 
=f5= 
New_quarters for Yokohama ama _laboratory.--"On February 1," reports 
L. B. Parker, "the Yokohama laboratory was transferred fron geo~-bluff, 
Nakamura to No. 21 Yamashita-cho. This transfer, which provides several 
advantages, was made in order to get quarters with sufficient space to 
accomodate the office and laboratory needs of both the oriental fruit 
moth work, with G. J. Haeussler in charge, and the Japanese and Asiatic 
beetle work, with L. B. Parker in charge. * * * The new laboratory is 
Situated at No. 21 Yamashita-cho, in a orticn of the building owned 
and occupied by the Canadian Pacific S. S. Co. It comprises approxi- 
mately 1,050 square feet of floor space, with electricity and water, 
and, located as it is, it is convenient to the business section, post 
Oifice, shipping offices, and docks." 
TRUCK CROP AND GARDEN INSECTS 
Protracted vacuum necessary for control of gladiolus thrips with 
HCN .-—H. i Rie nebecen of the tropical greenhouse, Washington, D. C., 
reporting on methcds of vacuum fumigation of infested gladiolus corms 
for control of Taeniothrips gladioli M. & S., says: "With a dosage of 
180 cm? of liquid hydrocyanic acid per 1,000 cu. ft. of space (vacuum 
of 27 inches, temperature 73 to 75° F.), complete kill of all stages 
of the thrips, including the e as cbhtained only when the vacuum 
was held for a pericd of at leas 

oe 
Requirements for hatching of Tacniothrips eggs.--Floyd F. Smith 
reports that "eges of Tacniothrips gliadioli do not hatch at a tempera- 
ture below 50° F. or at 90° F, with 70 per cent humidity under green— 
house conditions. At 90° F, in a saturated atmosphere, only 3 larvae 
hatched from 200 eggs. Eggs in cormels chilled for 3 days before be- 
ing placed at room temperature hatched, but these chilled for ll days 
Gr longer did not hatch. It is apparent that suberization of the corm 
tissue at the extreme temperatures verfere with the hatching of 
the eggs. These data on the cool te rature are of practical value 
in the winter storage of gladiolus corms." 

Strawberry weevil injury reduced by forest fires.—"Observations," 
by W. A. Thomas, Chadbourn, N. C., "during the past few weeks have shown 
that where the winter forest fires destroyed the hibernation quarters 
(of Anthonomus signatus Say) adjacent to strawberry fields, little or 
no injury is now apparent. In such areas, the amount of injury is in 
proportion to the thoroughness of the destruction of trashy areas about 
the fields. In some instances only a small clump of grass or gallberry 
plants was left unburned and almost invariably the adjacent plants 
are the only ones to show any infestation at present. This is attrib- 
uted to the few hibernating weevils left in the unburned areas." 
; resh-air ficnis.--A. C. Davis, of the mushroom—in- 
sects project, raleoun oe Md., reports that "a fow experiments were 
mede to ascertain whether or not a circulation of air was necessary to 
edult flies. Air of varicus humidities wes passed thrcugh the bottles 


