SOME HISTORY OF THE GRAPE IN THE UNITED STATES 67 



Rotundifolia and Munsoniana are grown for commercial purposes. 

 This region is found in the South Atlantic and Gulf States and along 

 the lower Mississippi Valley, extending from Maryland, south to 

 Texas on the west, thence north along the Mississippi River, to 

 Southeast Missouri and Tennessee. 



(3) The American Native Grape region in which improved 

 varieties of American Euvitis are grown for table grape, wine and 

 unfermented grape juice purposes. This is scattered over the 

 entire United States east of the Rockies and west of the Alleghany 

 Mountains, but carried on extensively in the States from the Hud- 

 son River west and north of the Ohio River and that border on the 

 Great Lakes and in the more centrally located states of the Missis- 

 sippi Valley. The great bulk of American champagnes and dry 

 wines and unfermented grape juices come from this region. 



Department Researches. 



The United States Department of Agriculture through its Viti- 

 cultural Investigations, is endeavoring to make itself useful in a 

 broad way, in assisting in the proper development of the industry 

 of the entire country. 



These researches are demonstrating in the American Euvitis 

 region that the failures made by the grape growers in the past were 

 largely due to lack of knowledge, and showing what the causes of 

 the failures were, that these can now be overcome. The investiga- 

 tions are assisting in the re-establishing and proper adjusting to 

 conditions of a once pretty extensive grape industry, that had grad- 

 ually been declining for years on account of lack of proper cultural, 

 training, pruning, and spraying methods, prevalence of grape 

 diseases and insect pests, and lack of knowledge by the growers of 

 the best means of counteracting and eradicating such evils. 



In the Muscadine regions we are determining the best methods 

 of planting, cultivating, training, pruning, and utilizing the product 

 of Muscadine grapes, with particular reference to determining the 

 adaptability of varieties and the discovery, origination, and dis- 

 semination of new varieties. 



An exhaustive research into the self-fertiMty and sterility of the 



