642 EXPERIMENT STATION EECORD. 



A vineyard of 1,500 seedlings bred from 1898 to 1903 has by a process of vigorous 

 selection decreased to less than 75 vines; but among this number are several 

 that seem very promising. Five of these have been tested, named, and placed 

 in the hands of nurserymen. 



A short bibliograpliy of cited literature is appended. 



Combination spraying experiment for the control of mildew and leaf- 

 hoppers on grapevines, S. W. Foster (Mo. Bui. Com. Hort. Cal., 4 (1915), No. 

 5-6, pp. 250-253). — Experiments conducted in 1914 by the author in cooperation 

 with R. M. Roberts and F. P. Roullard indicate that in vineyards where mildew 

 does not cause any injury until after the grapes are through blooming both 

 vine hoppers and mildew can be effectively controlled by one application of the 

 following formula : Atomic sulphur, 24 lbs., blackleaf 40 or sulphate of nicotin 

 1 pint, and water to make 200 gal. On varieties where the undersurfaces of 

 the leaves are covered with excessive hairy pubescence or when many of the 

 hoppers are more than half grown it is of advantage to add from 0.5 to 1 gal. 

 of liquid whale-oil soap to each 200 gal. of spray. In those vineyards where 

 mildew begins development early in the season the vines should be sprayed once 

 before blooming for mildew control, although no good can be accomplished in 

 vine-hopper control by spraying at this time. 



Factors governing the successful shipment of red raspberries from the 

 Puyallup Valley, H. J. Ramsey et al. (U. S. Dept. Agr. Bui. 27 Jf {1915), pp. 

 57, figs. 26). — This bulletin is based upon handling, storage, shipping, and 

 precooling experiments with red raspberries conducted by the Office of Horti- 

 cultural and Pomological Investigations during the seasons of 1911, 1912, and 

 1913. The subject matter is presented under the general headings of the berry 

 Industry of the Puyallup Valley, methods of growing red raspberries, handling 

 and shipping red raspberries, causes of decay of fruit in transit, frequency of 

 picking, relation of rainfall to handling, relation of methods of growing to keep- 

 ing quality, the labor problem, handling — an economic problem ; careful handling 

 experiments, effect of delay in cooling or keeping quality, precooling experi- 

 ments, decay in top and bottom crates, temperature conditions in an iced re- 

 frigerator car, and the application of precooling. 



The results of these investigations demonstrate that care exercised in handling 

 and the promptness with which the fruit is cooled are among the most important 

 factors in determining the distance red raspberries can be successfully shipped. 

 A number of recommendations are made with special reference to facilitating 

 and improving methods of handling, shipping, and precooling. 



Ettersburg strawberries, R. E. Clausen (Jour. Heredity, 6 (1915), No. 7, 

 pp. 324-331, figs. 3). — A popular account is given of the strawberry breeding 

 work of A. F. Etter, of Briceland, Cal. 



The author concludes that the most important result of this work is the 

 demonstration of the fact that further hybridization of the common garden 

 varieties of the strawberry, supposedly largely Fragaria chiloensis derivatives, 

 with wild forms of that species results in a notable increase in vigor and in 

 the production of new varieties superior in every respect to the ones commonly 

 cultivated. 



The citrus grove, its location and cultivation, P. H. Rolfs (Fla. Quart. 

 Bui. Agr. Dept., 25 (1915), No. 2, pp. 135-154). — An account of citrus culture in 

 Florida with special reference to the selection of location and site, preparation 

 of land, cultural treatment, and building up a neglected grove. 



The fertilizer requirements of citru? trees, H. J. Webber (Mo. Bui. Com. 

 Hort. Cal., 4 (1915), No. 5-6, pp. 225-230; Proc. Fruit Growers' Conv. Cal., 

 45 (1914), pp. 101-107). — The results of the first five fruiting years are given 



