7 
Program 
Friday, December 27, 1.30 p. m. 
Reading of Papers 
“The Morphology, Behavior and Susceptibility of the Eggs of Three 
Imported Apple Plant Lice,” by Alvah Peterson, New Bruns¬ 
wick, N. J. (15 minutes.) Lantern. 
Facts pertaining to the structure and behavior of the egg coverings during the 
dormant and hatching periods, and to the progressive susceptibility of the 
eggs during the early spring to common contact insecticides and other 
chemicals. Variations in percentage of moisture and degrees of tempera¬ 
ture also influenced by percentage of hatch. 
“Recent Developments in Fumigation with Liquid Hydrocyanic-acid,” 
by R. S. Woglum, Alhambra, Calif. (15 minutes.) 
Results of field observations and experiments in dosage and gas distribution. 
“High Temperature Fumigation and Methods of Estimating Radia¬ 
tion Required,” by W. H. Goodwin, New Brunswick, N. J. 
(10 minutes.) 
“Kerosene Emulsion versus Nicotine Solution for Combatting the 
Potato Aphid,” by W. E. Britton and M. P. Zappe, New Haven, 
Conn. (10 minutes.) 
Serious outbreak of the insect caused local scarcity of nicotine solution. It 
was demonstrated that the materials for making kerosene emulsion could 
be obtained at about half the cost. 
“The Potato Leafhopper ( Empoasca mail) and the Leaf Burn It 
Causes,” by E. D. Ball, Ames, Iowa. (15 minutes.) Lantern. 
A widespread and destructive outbreak of marginal burning of potato leaves 
was found to be caused by this leaf-hopper. 
“Some Notes on Phorbia fusciceps as a Bean Pest,” by Ira M. Hawley, 
Ithaca, N. Y. (10 minutes.) Lantern. 
Notes on life history, injury and prevention of damage from the insect. 
11 Phorbia fusciceps Zett., Biological Notes, Injury to Lima Beans,” by 
David E. Fink, Riverton, N. J. (10 minutes.) 
“Parasite Introduction as a Means of Saving Sugar,” by T. E. Hollo¬ 
way, Audubon Park, New Orleans, La. (15 minutes.) 
A report of progress on the introduction of tachinid parasites of the sugar-cane 
moth borer (Diatroea saccharalis ). 
“Limitations in Insect Suppression,” by Walter C. O’Kane, Durham, 
N. H. (15 minutes.) 
