MONTHLY LETTER OF THE BUREAU OF ENTOMOLOGY - | 
UNITED STATES DEPARTMENT OF AGRICULTURE © 





















Number 111 


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S975) 6 AON & 
GQRAIS Day 


TRUCK-CROP INSECT INVESTIGATIONS 


J. EH. Graf, Entomologist Acting in Charge 



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P E. G. Smyth has left Guatemala for Mexico, where he 
_ tigate the bean beetle situation in the area between Mexico City and Vera 
_ Cruz, with especial attention to the localities in the vicinity of Jalapa 
and Cordova. This region is at the edge of the Mexican plateau, and it is 
hoped that any parasites collected in this vicinity will be more easily 
: adapted to the climatic conditions in the southeastern portion of the 
_ United States. 

J. HE. Dudley, Jr., has returned to his headquarters at Madison, Wis., . ; 
_ after a trip through the pea-growing regions of Wisconsin, where a large | 
_ series of experiments for the control of the pea aphis have been conducted 
during the present season. 
J. R. Douglass, formerly connected with the Mexican bean beetle 
laboratory at Birmingham, Ala., has established headquarters at Estancia, 
N. Mex., for the study of the Mexican bean beetle under western conditions. 
_ He reports that the dry conditions which existed during the summer of 1922 
5) and most of last winter are continuing to some extent, and the acreage of 
_ beans has been greatly reduced. Apparently the beetles are appearing from 
hibernation in much smaller numbers than usual -- a condition which has 
* also been reported farther south in New Mexico by Dr. Robert Middlebrook. 
It appears that the dry weather of last summer, together with the cutting- 
ff of their food supply, has influenced this unusual condition. 

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a Guy Fletcher, temporary junior entomologist, stationed at Baton 
 Rovge, La., has resigned to accept the principalship of a Smith-Hughes high | 
_ school in Louisiana. 
John P, Wemple has been temporarily appointed junior entomologist to 
assist C. E, Smith at Baton Rouge, La., in truck-crop insect investigations. 
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| : 
CEREAL AND FORAGE INSECT INVESTIGATIONS { 
} 
W. R. Walton, Entomologist in Charge \ 
—. 
~~ ~ 
W. R. Walton, Entomologist in Charge, accompanied by L. H. Worthley, 
made a tour of inspection of the New England area of corn borer infestation 
during July. The areas of infestation recently infested in Maine, New Hamp- 
shire, Rhode Island, and Massachusetts were visited, and conferences were 
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