IV 
CONTENTS 
PAGE 
Ball, E. D. and Fenton, F. A. What Percent of Tipburn is Caused by 
the Potato Leaf hopper 218 
Barber, G. W. The Occurrence of the Chinch-Bug, Blissus leucopterus, 
in Eastern Massachusetts 369 
Britton, W. E. Some Phases of Beekeeping in Connecticut 91 
A Connecticut Cornfield Injured by Crambus praefectellus Zinck. 222 
Burke, H. E. The Pacific Oak Twig Girdler 379 
Burrill, A. C. and Jones, H. L. Migratory Instincts of the Blue Bottle 
Maggots, Phormia regina 1 475 
Chapman, R. N. The Ecology of Certain Insects which Infest Stored 
Food Products 1 38 
/ 
Childs, Leroy. Dust and the Spray Gun in Calyx Worm Control 331 
Crandall, L. B. The Value of Field Demonstrations in Extension Work 
in Bee Culture 357 
Crosby, C. R. and Palmer, R. G. The Organization of a Special Spray 
Service in New York State 212 
Davis, J. J. The Green Japanese Beetle Problem 185 
Miscellaneous Soil Insecticide Tests 136 
Dean, G. A. and Kelly, E. G. Organization for Grasshopper Control 237 
deOng, E. R. 1 The Fitness of the Waters of the Santa Clara Valley for 
the Making of Spray Solutions , 467 
Dohanian, S. M. Mosquito Control in a Southern Army Camp 350 
Dudley, J. E. Control of the Potato Leafhopper, Empoasca mali, and 
Prevention of “Hopperburn” 408 
Felt, E. P. The European Corn Borer Problem 59 
Fenton, F. A. and Hartzell, A. The Life History of the Potato Leaf 
Hopper 400 
Fernald, H. T. Ten Years of the Oriental Moth 210 
Ferris, G. F. Insects of Economic Importance in the Cape Region of 
Lower California, Mexico 463 
