Grapes. j \ 



water may be withheld when the fruit is ripening so as to 

 insure early maturity. 



J. H. NEWCOMB: Plow furrows where you want your 

 grapes; if not deep enough dig your holes the same as 

 recommended for apple trees and treat the same way. 



NO MILDEW KNOWN IN COLORADO. 



Says VALENTINE DEVINNY : Owing to the structure 

 and nature of the leaf of the grape vine it is especially sub- 

 ject to mildew, mould, rust or smut, all of which are synon- 

 omous terms for various forms of a parasitic plant, living 

 upon what it infests. Mildew is brought into existence and 

 propagated by a moist atmosphere and is destroyed by a 

 dry one. Therefore mildew, and especially grape mildew, 

 can not exist to any great extent, if ever, in our Colorado 

 climate. Though a cultivator of grapes for over twelve 

 years, yet I have never seen rust or mildew in my vineyard. 

 This goes to show that we possess one of the best climates 

 in the world for grape culture ; a climate not only suited to 

 the hardy coarse sorts, of the fox grape variety, but the 

 finer foreign sorts also, such as the Muscats, Hamburg and 

 and Chasselas' Frontignans. 



GOOD EFFECTS OF IRRIGATION. 



V. DEVINNY : The grape requires less water than almost 

 any other fruit. It is a notable fact, which thus has a direct 

 bearing upon this matter, that all grape-growing districts 

 throughout the world noted for the production of grapes or 

 wine in their perfection, are . favored by an arid climate 

 where agriculture is pursued in whole or in part by the aid 

 of irrigation. The famous wine districts of France, Italy 

 .and Germany are located within, or are adjacent to, arid re- 

 gions made fertile by a grand and extensive system of irri- 

 gation. The arid regions of Spain produce wines and raisins 

 of world-wide fame ; so also in Australia and in our own 

 .sister State of California, we find the most magnificent 



