8 
9. Recent European Investigations of the Parasites of the Gipsy 
Moth and the Brown-tail Moth. (15 min.) S. S. Crossman and R. T. 
Webber, Melrose Highlands, Mass. 
An account of recent introductions into the United States of parasites of the Gipsy 
Moth and Brown-tail Moth. 
10. The Importation of Parasites to control the Japanese Beetle 
(.Popillia japonica). (10min.) (Lantern). L. B. Smith, Riverton, N. J. 
A general summary of the work accomplished and results secured during past season- 
11. Selective Parasitism by Tiphia sp. (8 min.) H. A. Jaynes and 
T. R. Gardner, Riverton, N. J. 
The result of three years study of the parasitism on Ochrosidia ( Cyclocephala ) im- 
maculata and Popillia japonica, by certain species of Tiphia. 
12. Notes on the Life History of a Beneficial Reduviid, Sinea 
diadema (Fabr.). (5 min.) (Lantern). P. A. Readio, Lawrence, Kan. 
13. Natural Enemies of Beet Leafhopper ( Eutettix tenella Baker). 
Henry H. P. Severin, Berkeley, Calif. 
14. Dusting Investigations on Truck Crops in Maryland. (15 min.) 
(Lantern). E. N. Cory and S. F. Potts, College Park, Md. 
A summary of two years work with nicotine dusts on the pea aphis with special 
reference to the effectiveness of commercial and home mixed dusts, rates per acre 
and comparison of costs. Summaries of results with other dust mixtures used 
against the pea aphis. 
15. Some Chemicals Attractive to Adults of the Onion Maggot, 
Hylemyia antiqua Meig. and the Seed-Corn Maggot ( Hylemyia cili- 
crura Rond.). (15 min.) (Lantern). Alvah Peterson, New Bruns¬ 
wick, N. J. 
Several alcohols and other organic chemicals attract males and female flies. 
16. Some new aspects of the Bichloride Treatment for Cabbage 
Maggot Control. (10 min.) Hugh Glasgow, Geneva, N. Y. 
Observations on the influence of mercuric chloride on plant growth, and on the 
development of certain diseases affecting cabbage seedlings. 
17. A Stilt-bug, Jalysus spinosus Say, Destructive to the Tomato. 
(10 min.) C. R. Phipps, Mountain Grove, Mo. 
Description, injury, life-cycle and control. 
Adjournment. 
Monday Evening Session , December ji , 1923, 8:00 p. m.; Chemistry 
Auditorium 
Meeting of the Insect Pest Survey and Extension Entomologists 
