14 
58. Control of the Saw-toothed Grain Beetle in Raisins: A Prelim¬ 
inary Report. (10 min.) (Lantern.) J. C. Hamlin and Curtis Benton, 
Fresno, Calif. 
Summarizes experiments in connection with (1) reducing existing severe infestations 
and (2) preventing infestation of incoming raisins in the plants. 
59. A Newly Recommended Fumigant; Ethyl Acetate in Combi¬ 
nation with Carbon Tetrachloride. (10 min.) E. A. Back and R. T. Cot¬ 
ton, Washington, D. C. 
The effectiveness of Ethyl Acetate—Carbon Tetrachloride mixture as a fumigant for 
stored product insects under certain conditions. 
60. The Causes of Outbreaks of the Angoumois Grain Moth. (10 
min.) Perez Simmons and G. W. Ellington, Silver Spring, Md. 
The correlations between Angoumois grain moth abundance and the thermal environ¬ 
ment in a selected area (the region around Philadelphia) during the past 28 years 
indicate the probability that the principal factor influencing the occurrence of 
moth outbreaks there is the temperature from June to October. Time of harvest 
nd winter temperatures also appear to be of importance. 
61. Relative Abundance and Control of Grain Moth (Sitotroga 
cerealella) in Pennsylvania in 1924. (3 min.) (Lantern.) H. B. Kirk, 
Harrisburg, Pa. 
Field studies showing possible means of control by farm practices. 
62. A Practical Control of the Common Bean Weevil, Bruchus 
obtectus Say. (10 min.) A. O. Larson and C. K. Fisher, Alhambra, Calif. 
A progress report dealing with the field control work which has been carried on in 
California. 
Program 
Saturday Morning Session , January j , 1925 , q:jo 
Gymnasium , Central High School 
READING OF PAPERS 
Insects Affecting Man and Animals 
63. Controlling Bedbugs in Steam-heated Rooms. (10 min.) (Lan¬ 
tern.) R. W. Harned and H. W. Allen, A. &.M. College, Miss. 
64. Repellents and Larvicides for the Screw worm and other Flies— 
Report of Progress. (10 min.) F. C. Bishopp, R. C. Roark, D. C. Parman 
and E. W. Laake, Dallas, Texas. 
Treats of recent work on the chemotropic responses of the screw worm and other 
flies and discusses investigations of the more promising repellents against them. 
