CONTENTS 



Cartwright, W. B. Host Plant Selection by Hessian Fly, Phytophaga de- 

 structor Say 360 



Caesar, L. The Cabbage Root Maggot' 240 



Campbell, R. E. Injury to Bell Peppers by Blapstinus coronadensis Blaisd. 

 and B. dilatatus 363 



Clarke, W. T. Ant Control on Ship Board 329 



Crawford, H. G., and Spencer, G. J. The European Corn Borer Control 

 Measures 231 



The European Corn Borer, Pyrausla nubilalis Hubn., Life-History in 

 Ontario 222 



Criddle, Norman The Western Wheat Stem Sawfly in Canada* 221 



Davis, J. J. Insect Problems in Indiana in 1921 277 



Dean, G. H. How We May Increase the Effectiveness of Economic Ento- 

 mology 44 



DeLong, D. M. The Boom Nozzle System and the Traction Duster as 

 Factors in Grape Leaf Hopper Control 87 



DeOng, E. R. The Relation of Alkaline Waters to the Preparation and 

 Dilution of Sprays and Dips 339 



DuRUZ, W. P. Peach Twig-Borer Experiments in California 395 



Felt, E. P. The European Corn Borer in New York State 236 



Fenton, F. a., and Hartzel, Albert Effect of Bordeaux Mixture on 

 Empoasca mali 295 



Fenton, F. A., and Ressler, I. L. Artificial Production of Hopperburn 288 



Fracker, S. B. The Legal Aspects of Pest Control 167 



Factors Affecting the Success of American Foul Brood Campaigns 138 



Frost, S. W. The False Apple Red-Bug, Lygidea mendax in Pennsylvania 102 



Eulia mariana Fern., A New Apple Feeder in Pennsylvania and Some 

 Related Forms on Apple 312 



Two Injurious Fruit Mites in Pennsylvania 372 



Glenn, P. A. Relation of Temperature to Development of the Codling 

 Moth 193 



Gossard, H. a. Progress in Hessian Fly Control' 221 



Hadley, C. H. Outlines and Progress of Work being Conducted against 

 the Japanese Beetle, Popillia japonica 62 



Harned, R. W., and Kimball, H. H. The Sweet Potato Inspection Service 

 in Mississippi 149 



Harned, R. W., and Smith, M. R. Argentine Ant Control Campaigns in 

 Mississippi 261 



'Withdrawn for publication elsewhere. 



