AUTHOR'S PREFACE. 



Viticulturists are nowadays, so far as choice of remedies 

 against the invasion of phylloxera is concerned, in two 

 distinct situations : some possess vineyards, attacked or not, 

 others do not possess any, as they have been destroyed. The 

 use of insecticides recommends itself to the former, if\ 

 however, the conditions of soil and climate are favorable, and 

 if they are able to provide for the expense of annual treatment. 

 It is a means of saving considerable capital, and of 

 continuing without interrupting the vintages. This book is 

 not written for those who are fortunate enough to be 

 amongst the former ; they will find in the excellent publi- 

 cations of Marion and Crolas, of the old Viticultural 

 Association of Libourne,* in the more recent works of 

 Crozierf and of Gastine and Couanon,J all that they may 

 require with regard to the use of bisulphide of carbon, and 

 in those of Mouillefert everything concerning the nse of 

 sulfo-carbonate of potassium. One could only repeat what 

 has been well condensed already in these different books, 

 they have, therefore, been left apart. We intend taking into 

 consideration only those viticulturists who have lost their 

 vineyards, and who cannot hope to succeed with costly 

 insecticides. The replanting of good soils with European vines, 

 with the object of treating them later on with insecticides, 



* Chemins de fer P. L. M. : Instructions pour le traitement des mgnes par le sutfure de 

 carbone, annee 1878. Paris, imprimerie administrative Paul Dupont, 41 rue J. J. Rousseau. 



Instructions relatives a la disposition des trous d'injection, &c (meme edit.)- 



Crolas et Falieres: Des moyens pratiques et surs de combattre le phylloxera. ParK 

 G. Masson, 1878. 



t F. P. Crozier : Phylloxera et sulfure de carbone. Paris, 1884. 



J G. Gastine et Georges Couanon : Emploi du sulfure de carbone contre le phylloxera. 

 Bordeaux, 1884. 



P. Mouillefert : Le Phylloxera ; moyens proposes pour le eombattre, <kc. Paris, 1878. 



