"Hessian Fly Investigations," by L. Haseman, Columbia, Missouri., 

 (15 minutes.) 



Preliminary notes on investigations under way to determine the fly-free dates 

 for the wheat section of the state, the annual cycle of the fly, its egg-laying 

 habits, resistant qualities of certain varieties of wheat and community coopera- 

 tion for the control of the pest. 



"The 1916 Hessian Fly Campaign in Missouri," by Thomas J. Tal- 

 bert, Columbia, Mo. (10 minutes.) 



Deals with the character and scope of the work undertaken; how a cooperative 

 effort among the farmers was secured and the results of the campaign. 



"Results of Ten Years of Experimental Wheat Sowing to Escape 

 the Hessian Fly," by Geo. A. Dean, Manhattan, Kansas. 

 (12 minutes.) Lantern. 



"A Country-wide Survey to Determine the Effect of Time of Seeding 

 and Presence of Volunteer Wheat upon the Extent of Damage 

 by the Hessian Fly," by T. H. Parks, Manhattan, Kansas. 

 (10 minutes.) 



Deals with the comparative injury by Hessian fly and the relation of this injury 

 to the time of seeding, and amoimt of volunteer wheat present at seeding time. 



"Studies on the Life-history of Ligyrus gibbosus De G.," by Wm. P. 

 Hayes, Manhattan, Kansas. (15 minutes.) 

 Economic importance, life-history, enemies and methods of control. 



"Summary of Investigation of Ligyrus rugiceps in Virginia," by 

 Henry Fox, Clarksville, Tenn. (10 minutes.) Lantern. 

 Life-history, habits and specific characteristics, with account of injury to corn 

 crop. 



Adjournment. 



Program 



Saturday, December 30, 2.00 -p. m. 



Reading of Papers 



"Wind as a Factor in the Dispersion of the Hessian Fly," by J. W. 

 McColloch, Manhattan, Kansas. (15 minutes.) Lantern. 



" Methods Used in Determining Wind Dispersion of the Gipsy Moth 

 and Some Other Insects," by C. W. Colhns, Melrose Highlands,. 

 Mass. (10 minutes.) Lantern. 



Brief account of methods used with results accomplished and their application 

 in preventing spread of the gipsy moth. 



"On the Life-history and Successful Introduction into the United 

 States of the Sicilian Mealybug Parasite," by Harry S. Smith,, 

 Sacramento, Cal. (10 minutes.) 



