REPORT OP COMMITTEE ON PUBLICATION 93 



and reach the lower strata. Certain varieties and certain stocks demand 

 special soil. 



Not much work has been done with stocks for grapes, but at the Umatilla 

 Experiment Station, Hermiston, Oregon, we have inaugurated a number of 

 experiments with grapes and are experimenting with double working. A 

 bulletin is now in press concerning grape growing in that section. 



Varieties. 



We find a tremendous range as regards adaptability of the different 

 varieties. The principal varieties of Vinifera grapes for Southern Oregon 

 are Tokay, Malaga, Muscat, Thompson Seedless, Rose of Peru; American 

 varieties: Worden, Concord, Delaware, Moore's Diamond, Niagara. 



In the Willamette Valley, we have been growing at this Experiment 

 Station a large number of varieties and find that the following succeed best: 

 blue grapes: Moore's Early, Worden; white grapes: Moore's Diamond, 

 Niagara; red grapes: Brighton, Delaware. There are some other very promis- 

 ing varieties, Campbell's Early meeting with considerable favor and a few 

 of the growers finding Regal one of their best grapes. 



For Eastern Oregon the following recommendations and descriptions 

 taken from Bulletin 126 (now in the press) on Grape Growing in Eastern 

 Oregon, by Professor R. W. Allen, will be of interest: 

 Recommendations : 



The Concord and Worden are preferred for the manufacture of black 

 juice. For red juice, the Catawba is preferred. 



Early Moore, Winchell and Delaware are promising for early dessert 

 varieties. The Early Campbell, Worden and Diamond are superior mid- 

 season varieties. For late season and storage varieties the Concord, Catawba 

 and Niagara are preferable. 



But a small number of Viniferas can be recommended for general plant- 

 ing as late varieties do not reach full maturity. The most successful are 

 Sultanina (Thompson's Seedless), Malaga, Muscat of Alexandria, Flame 

 Tokay, Black Hamburg and Black Prince. 



Varieties for home use should be selected from this list. It includes a 

 sufficient number from which a succession of hardy and productive varieties 

 can be taken to supply fresh fruit from August to December, or until January 

 with proper storage. 



Tillage. 



Very little can be said regarding tillage. The same rules that apply 

 to other fruits apply in grape production. The main point is to sufficiently 

 till the ground so as to maintain the vigor of the plant the first two or three 

 years after planting for if neglected at that time they rarely become heavy 

 producers. 



In the irrigated district, great care must be taken in irrigation. The 

 rill system is generally used and on some sandy soils, irrigation will have to 

 be given every two or three days. 



Some growers are using cover crops to splendid advantage. There is 

 danger, however, of overdoing the use of cover crops or the application of 

 nitrogenous manures in any form. While the grape is a heavy feeder, too 

 much nitrogen produces a vigorous plant growth at the expense of fruit. 



