VINE DISEASE STILL MYSTERIOUS 



knot" of fruit trees which will be mentioned in the chapter on plant 

 diseases. 



Anaheim Disease. There has prevailed for several years in 

 California a mysterious disease of the vine known as the "Anaheim 

 disease," because its evil work first appeared in that vicinity. It 

 destroyed many thousand acres of vines and led to the abandon- 

 ment of grape growing in some regions in Southern California for 

 many years. Fortunately during recent years the trouble has been 

 less aggressive, but neither its nature nor satisfactory treatment has 

 been fully demonstrated. 



The latest available information concerning insect injury and 

 other troubles of the vine can be had by application to the Univer- 

 sity Experiment Station at Berkeley. 



