MONTHLY LETTER OF THE BUREAU OF ENTOMOLOGY 
UNITED STATES DEPARTMENT OF AGRICULTURE 






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- Number 85 May , 1921 
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RHBEAU OF ENTOMOLOGY 
% JUN 27 W2l we 
PECEIVED) 
TRUCK CROP INSECT INVESTIGATIONS 

F. H. Chittenden, Entomologist in Charg 
J. B. Graf, in charge of field work in Mexican bean beétle control at 
Birmingham, Ala., has recently advised the bureau that the Mexican bean bestle 
has been found in Georgia along the line of the Alabama Great Southern Rail- 
way between Rising Fawn and the Alabama, line. 
Only small sums are at present available for quarantine and control 
measures by the States of Alabama and Georgia. The quarantined areas now 
in force will, however, bo extended to..include the small infestations i n 
Tennessee and Georgia and every effort will be made to restrict the further 
dissemination of the beetle from these outlying points of infestation. 
It is probable that a branch research station will be established in the 
vicinity of Chattanooga for a comparison of the conditions there with those 
encountered at Birmingham, 
R. W. Allen has been appointed to assist Neale F. Howard in the Birming- 
ham research laboratory with regard to the chemistry of new insecticides 
which it is proposed to apply to the Mexican bean beetle. 
The following have been appointed to act as district inspectors in connec~ 
tion with the enforcement of Quarantine No. 50 against the Mexican bean bee- 
tle: J. D. Waugh, F. I. Jeffrey, EB. G. Small, G. B. Warren, and H. L. Weatherby. 
B. L. Boyden, in charge of field work in sweet-potato weevil investiga- 
tions, reports that in spite of conditions incident to the unusual season in 
northern Florida, such as the drought which has materially delayed draw dis- 
tribution, sweet-potato planting from certified weevil-free draws is now almost 
completed. Only about 150,000 more draws will be required. All of the growers 
on infested properties have signed contracts and the outlook is exceptionally 
good for a successful season. 
C. H. Batchelder of the Maine Agricultural Experiment Station has been re- 
appointed to conduct cooperative experiments in the control of insects which 
transmit the potato mosaic disease and to make observations on other potato 
insects in the Aroostook County potato region. He will be stationed at 
Presque Isle, Maine. 
k. S. Roberts has been appointed to assist M, M. High, in charge of the 
laboratory at Kingsville, Tex., in experimental work on truck-crop insects. 
William D. Mecum has been reappointed to assist J, i. Dudley, Jr., in 
spraying experiments against truck-crop insocts at Madison, Wis. 
G. Fletcher has been appointed to assist Chas. B. Smith, Baton Rouge, 
La., in connection with rearing experiments. 

BEE CULTURE 
BH. F. Phillips, Apiculturist in Charge 
In cooperation with the Bureau of Chemistry an investigation is being 
