O-C 



PREFACE TO CALIFORNIA EDITION 



(TRANSLATION.) 



The translation of the book which Messrs. Raymond Dubois 

 and Edmund H. Twight are now presenting to California viti- 

 culturists is a summary of the efforts accomplished by the 

 viticulturists of France in the struggle against phylloxera, 

 and of the new knowledge they have definitely gained for the 

 reconstitution of vineyards. This knowledge has been revised 

 to date for the present translation, and all new facts which 

 actually permit to direct the reconstitution of vineyards are 

 brought together in this California translation. 



The viticulturists of California are practically working 

 under the same conditions as the viticulturists of the South of 

 France, therefore the facts acquired in that region should be 

 applied in their vineyards. These facts are simple, and 

 consist, above all, in having recourse to the American vines 

 most resistant to phylloxera, that is to say, in using pure 

 species (V. Riparia, V. Rupestris, V. Berlandieri), or hybrids 

 of these species (V. Riparia X V. Rupestris, V. Rupestris 

 X V. Berlandieri, and V. Riparia X V. Berlandieri). The 

 essential condition is to select different graft-bearers, accord- 

 ing to the diverse classes of soils, and we trust that this book 

 will assist California viticulturists in that direction. 



The course to be followed in the struggle against phylloxera 

 is nowadays definitely established. The immense efforts 

 accomplished by our French viticulturists have vanquished 

 an unprecedented crisis; their work, crowned with success, 

 should benefit the viticulturists of the whole world. The 

 most definite and general conclusion derived from this strug- 

 gle is the superiority of reconstitution with American vines 

 resisting the attacks of the insects. France possessed, before 



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