"The Outbreak of Alabama argillacea Hbn. in 1911," by W. D. Hunter 

 Dallas, Texas. (10 minutes.) 



A brief description of the very unusual outbreak in 1911 and its probable causes. 



"The Work in Peru Against the White Scale of Cotton," by C. H. T. 

 Townsend, Piura, Peru. (15 minutes.) 



Outline of the parasites so far used and their shortcomings due to the particular 

 conditions here present, with plans of the work for the future. 



"The Cotton Square-weevil of Peru and its Parasites," by C. H. T. 

 Townsend, Piura, Peru. (15 minutes.) 



Additional data on the weevil, with an enumeration of the parasites reared from 

 infested squares and bolls to date. 



"Natural Control of Aleyi'odid Pests of Citrus in Florida," by E. A. 

 Back, Blacksburg, Va. (15 minutes.) 



Results of Experiments conducted by U. S. Bureau of Entomology. 

 Adjournment. 



Program 



Thursday, December 28, 1.30 p. m. 



Reading of Papers 



"Insecticides for Use in Controlling the White Fly," by W. W. Yoth- 



ers, Orlando, Fla. (15 minutes.) 

 Discusses the successful use of insecticides against this pest. 



"Ortho-Arsenite of Zinc as an Insecticide," by R. A. Cooley, Boze- 

 man, Mont. (10 minutes.) 



A comparison of this insecticide with Paris green and arsenate of lead with respect 

 to (a) injury to the bark of the apple, (6) settling in water with and without 

 soap, (c) killing power end (d) cost. The results indicate a promising insecticide. 



"Some Results of Lime-Sulfur Research in Oregon," by A. B. Cord- 

 ley, Corvalhs, Ore. (15 minutes.) 



Discussion to be led by P. J. Parrott, Geneva, N. Y. 



"The Susceptibihty of Adults and Eggs of Pear Psylla to Spraying 

 Mixtures," by P. J. Parrott and H. E. Hodgkiss, Geneva, N. Y. 

 (To be read by title.) 



Discussion of a large number of experiments to determine the effects of various 

 sprays on adults, eggs and nymphs. 



