8 
3. The Hessian Fly Problem in Kansas. (10 min.) J. W. McColloch, 
Manhattan, Kansas. 
4. The Relation of Hessian Fly Damage to Yield. (5 min.) (Lantern.) 
C. C. Hill, Carlisle, Pa., and H. D. Smith, Carlisle, Pa. 
5. The Organized Co-operative Campaign Against Grasshoppers in 
Wisconsin. (5 min.) (Lantern.) A. A. Granovsky, Madison, Wise. 
6. The Arsenical Poisoning of Live Stock. (10 min.) Geo. I. Reeves, 
Salt Lake City, Utah. 
Toleration of animals for arsenic, clinical diagnosis, post-mortem diagnosis; Dr. 
Gardner’s experiments; relation to spraying for the alfalfa weevil. 
7. Phthorimaea operculella in the Eastern States. (10 min.) (Lantern.) 
Herbert Spencer and W. O. Strong, Norfolk, Va. 
A discussion of the recent outbreak of the insect, and its relation to potato and 
tobacco growing: 
8. Economic Wireworms of the Pacific Northwest (Elateridae). 
(10 min.) M. C. Lane, Toppenish, Wash. 
Paper will be a brief summary of Life History work and control of several Economic 
wireworms of Pacific Northwest. 
9. The Status of the European Corn Borer in Ontario (1924). (8 
min.) L. S. McLaine and H. G. Crawford, Ottawa, Canada. 
A brief review of the European Corn Borer situation in Ontario, indicating the in¬ 
crease in intensity of infestation in certain districts and spread during 1924. 
10. Status of the European Corn Borer in the United States in 1924. 
(10 min.) (Lantern.) D. J. Caffrey, Arlington, Mass. 
General summary of spread and results of investigations on the control, habits, dis¬ 
tribution and parasites of the corn borer. Includes European observations during 
1924. 
11. On Certain Behavior of the European Corn Borer. (5 min.) L. L. 
Huber, Wooster, Ohio. 
Insects Affecting Truck Crops 
12. A New and Effective Control for the Onion Maggot. (10 min.) 
(Lantern.) W. P. Flint and C. C. Compton, Urbana, Ill. 
Results of experimental work in the control of the onion maggot extending over a 
period of six years conducted in the large onion growing sections in Cook Coun¬ 
ty, Illinois. 
