102 - INTERNATIONAL CONGRESS OP VITICULTURE 



During recent years in some of the grape growing districts some trouble 

 has been experienced from the grape crown-gall. This disease seems to 

 attack some varieties more than others. Fortunately the better commercial 

 varieties are somewhat resistant to it and those that are attacked by this pest 

 are not materially injured. 



Varieties. 



The old El Paso or Mission grape is the one that has been grown ever 

 since grapes were first planted in New Mexico. There are more vineyards of 

 the Mission than of any other grape. This variety has been quite popular 

 throughout New Mexico, as well as throughout Texas and Louisiana. It is a 

 very hardy variety, and withstands considerable drought, neglect and cold. 

 It is a good bearer and of fairly good quality. 



During more recent years the Muscat of Alexandria has displaced many 

 of the Mission vineyards. This is one of the best varieties that is being 

 grown at the present time. It begins to ripen about the 15th of August, 

 about ten days earlier than the Mission. The Black Cornichon, Purple 

 Damascus, Flame Tokay and Black Ferarra are varieties that are being 

 planted quite extensively in the State. The Thompson Seedless and Chasselas 

 are becoming popular early varieties. 



Use. 



Grape growing does not compare in importance with apple, pear or peach 

 growing. Most of the grapes that are raised are shipped locally in the State, 

 some are shipped to Colorado, to Oklahoma, to Texas and to Louisiana. A 

 large per cent of the grapes grown by the native farmers is converted into 

 wine. 



April 2, 1915. 



GRAPE GROWING IN UTAH. 



By A. B. BALLANTYNE, 



Provo, Utah. 



General Conditions. 



Lying mostly within the Great Basin, Utah, as a whole, possesses the 

 climatic characteristics of this vast semi-arid region. The warm usually 

 dry sunny days are followed by cool crisp nights, the total daily range of 

 temperature at almost any season being very great. 



In surveying the climate of this State with reference to the grape 

 industry, cognizance must be taken of the two geographical areas into which 

 it is divided The Great Basin region lying west of the Wasatch Mountains 

 and north of the Pine Valley Mountains at the southern end of the State, and 

 the Colorado River Drainage Basin including the eastern and extreme south- 

 ern portions. The southern portion of this latter basin is commonly called 

 Utah's Dixie and includes that section lying around St. George. It is here 

 that most of the grapes are grown. 



