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Adan Celaya, a graduate of the Tempe Normal School, has accepted , 
a temporary appointment in connection with the seed chalcis investiga- 
tions in the Yuma Valley. 
J. HR. Horton, in charge of the Wichita, Kans., station, was called 
into consultation on account of the grasshopper outbreak in Oklahoma dur- 
ing early July. At the present writing the situation seems to be under 
control. . 
W. J. Phillips visited Greensboro, N. C., July 4 to investigate 
an infestation of the wheat jointworm, and found a very abundant occur- 
rence of this insect in that vicinity. An infestation of 100 per cent 
was found in one field. 
George W. Barber, engaged as an assistant in the corn borer re- 
search work, visited Washington July 18 for the purpose of consultation 
and preparation of a manuscript. 
L. H. Worthley, in charge of the corn borer control, left Arlington, 
Mass., during the week of July 25, going to Cleveland, Ohio, where he will 
be located for several weeks to supervise the initiation of the scouting 
and quarantine work in the Lake regions. 
Prof. Geo. A. Dean left Washington, D. C., July 19 for a visit to 
Manhattan, Kans. On his return trip to Washington Prof. Dean will visit 
several of the field laboratories in the Middle West and inspect the corn 
borer scouting and quarantine work in the Great Lakes region... He expects 
to return to Washington about the last of August. 
TRUCK CROP INSECT INVESTIGATIONS 
J. E. Graf, Entomologist in Charge 
C. H. Popenoe, in charge of the truck-crop insect work at the S5il- 
ver Spring, Md., laboratory, visited Pomeroy, Pa., and vicinity to investi- 
gate an outbreak of insects in mushroom hovses. It was first reported that 
mites were the cause of the trouble, but wpon investigation Mr. Popenoe 
found that springtails were the principal insects concerned. Cooperative 
experiments with the mushroom growers have been initiated. 
R. E. Campbell, in charge of the Alhambra, Calif., laboratory, re- 
ports that A. F. Burgess, after attending the meetings of the Pacific Slope 
Branch of the American Association of Economic Entomologists at Stanford 
University, visited the Bureau laboratory at Alhambra and the Citrus Ex- 
periment Station at Riverside. 
