ANNUAL REPORT, 1943-44 73 



The purpose of this bulletin is to make available for the Massachusetts 

 poultry industry information which will aid the poultrymen to improve 

 their methods of establishing and maintaining pullorum disease-free flocks. 



408 Home Refrigeration and Food Preservation. By John E. W. McConnell, 

 William B. Esselen, Jr., and Carl R. Fellers. 19 pp. illus. July 1943. 



With proper use an efficient household refrigerator reduces danger of 

 the development of food poisoning organisms to a minimum and effectively 

 preserves the quality and vitamin content of foods. 



409 The Grape Plume Moth, with Notes on Other Pests of Grapes in Massa- 

 chusetts. By W. D. Whitcomb, Wm. E. Tomlinson, Jr., and E. F. Guba. 

 20 pp. illus. October 1943. 



Part 1 reports for the first time the complete life history and control by 

 dormant spraying of the Grape Plume Moth, an obnoxious pest in home 

 vineyards in eastern Massachusetts. Part II describes briefly other insects 

 and diseases likely to attack grapes and includes a complete spraying and 

 dusting schedule for their control. 



410 Propagation of the High-Bush Blueberry by Softwood Cuttings. By W. L. 

 Doran and J. S. Bailey*. 8 pp. illus. November 1943. 



Blueberries are difficult to propagate because the cuttings root so slowly. 

 These experiments were planned to find a method for decreasing the per- 

 centage of failures encountered at present. 



411 Variability in Egg Weight in Rhode Island Reds. By F. A. Hays. 16 pp. 

 illus. January 1944. 



Market grades of eggs are based largely on weight, and it is important, 

 therefore, for the breeder to know how much variability in egg weight may 

 be considered normal and how much is due to genetic factors. 



412 The Cabbage Maggot. By W. D. Whitcomb*! 28 pp. illus. February 1944. 



The Cabbage Maggot is a destructive pest of cruciferous plants in 

 Massachusetts, and successive crops can seldom be grown successfully 

 without providing protection against it. The most satisfactory treatments 

 to use on certain types of plants and for different degrees of infestation are 

 recommended. 



413 The Identification of Plum Varieties from Non-Bearing Trees. By Law- 

 rence Southwick and A. P. French. 51 pp. illus. March 1944. 



The identification of varieties before fruit trees leave the nursery is 

 important if disappointments in the orchard are to be avoided. This 

 bulletin considers the characteristics by which nursery plum trees may be 

 identified and records descriptions and photographs of 57 varieties. 



414 Bacteria and Rural Water Supplies. By James E. Fuller. 20 pp. June 

 1944. 



This is an attempt to give intelligent direction to what constitutes sani- 

 tation in rural water supplies. 



415 Sunflowers as a Crop. By Karol J. Kucinski and Walter S. Eisenmenger. 

 8 pp. illus. June 1944. 



Sunflowers as a farm crop deserve consideration in Massachusetts be- 

 cause of their merits as a feed for poultry and other livestock in this area 

 where adequate and satisfactory supplies of feed are of foremost concern. 



416 Relation of Intensity to Egg Weight and Egg Production. By F. A. Hays. 

 12 pp. June 1944. 



Intensity is one of the most important inherited characters affecting 

 egg production. This study brings out important relationships between 

 intensity, egg weight, and egg production in an improved flock. 



