12 



"A Study of the Lethal Dosage for the Colding Moth Larva," by L. 

 Haseman, Colmnbia, Mo. (10 minutes). 



This paper will deal first with the distribution of and measure of arsenic placed on or 

 in the blossom cups of apples by spraying and second with experimental results in 

 feeding measured doses of arsenate of lead to apple worms of varying ages. 



"A New Apple Bud-moth in Pennsylvania (Sparganothis idaeusalis 

 Wlk.)," by S. W. Frost, Arendtsville, Pa. (5 minutes). 



"The Effect of Leaf-hopper Injury on the vSugar Content of Grapes," 



by D. L. Van Dine, State College, Pa. (15 minutes). 

 Sugar content of grapes as an index to the efficiency of nicotine in leaf-hopper control. 



"Recent Developments in Pliun Curculio Investigations in Georgia," 

 by O. I. Snapp, Fort Valley, Ga. (15 minutes). 



New discoveries in the life history of the insect and summarized results of some 

 control experiments. 



"The Strawberry Crown borer in Tennessee; its life history and con- 

 trol," by S. Marco vitch, Knoxville, Tenn. (8 minutes). 



"Control of the Strawberry Root-worm in Commercial Rosehouses," 

 by C. A. Weigel and C. F. Doucette, Washington, D. C. (10 minutes) 

 Lantern. 



Summarized results of three years investigations on the control of this pest in com- 

 mercial greenhouses. 



Adjournment. 



Friday, December 2g, ig22, J p. m. 

 Entomologists' dinner. Details will be announced dtu-ing the meeting. 



Program 



Saturday, December jo, IQ22, g:oo a. m.. 

 (Massachusetts Institute of Technology, Cambridge, Mass.) 



Joint Meeting, American Association of Economic Entomologists and 

 American Phytopathological Society. 



Subject: Plant Quarantines. 



C. L. Marlatt, Washington, D. C. :— "The When and Why of Plant 

 Quarantines." 



WiLMON Newell, Gainesville, Fla.: — "Tropical and Sub-Tropical 

 Quarantines." 



