38 STUDIES OF THE CROWN-GALL OF THE GRAPE. 



Page. ' 



Cuttings, care in selection, planting, etc 27 



diseased, cause of spread of crown-gall 25 



treatment in experiments for determining susceptibility to crown- 

 gall '.... 12-13 



England, investigation of crown-gall by Cooke 9 



Exostoses and exostoses fungoides, variant names for crown-gall 8 



Fabre and Dunal, first written record of crown-gall 8 



Flame Tokay grape, susceptibility to crown-gall 16 



Fongosites, variant name for crown-gall 8 



France, importance of crown-gall 10 



investigators of crown-gall, list 8 



Freezes, relation to crown-gall of grapes 15 



Frosts, late spring, cause of crown-gall, authorities 20 



relation to crown-gall 15, 16 



origin of cane galls 13, 15 



Fusicoccum viticolum, cause of crown-gall, authority 21 



Fusisporium, fungus, cause of crown-gall, authority 20 



Galls, production on plants by Bacterium tumefaciens 21-22 



Garcia, Prof. Fabian, discovery of crown-gall at Bernalillo, N. Mex 7 



Germany, importance of crown-gall 10 



investigators of crown-gall, list 8 



Goethe, hybrid grape, susceptibility to crown-gall 15-16 



Grafting, importance of resistant stocks 27 



varieties most nearly immune to crown-gall, for stocks 18 



resistant to phylloxera, value as stocks in producing resist- 

 ance to crown-gall 20 



Grapes, American varieties, resistance to crown-gall 10-11, 15, 18, 20 



European varieties, susceptibility to crown-gall, experiments 16-18 



varieties most susceptible to crown-gall 10, 18 



resistant to crown-gall 18, 19-20, 28 



tested for resistance to crown-gall in vineyard at Bernalillo, 



N. Mex., list and percentages 17-18 



variation in resistance to crown-gall 16 



Grapevines, crown-gall resistant, planting on own roots, recommendation 26-27 



susceptibility and resistance of varieties, discussion. . . 15-20 



effect of crown-gall 12 



treatment to prevent freezing, Arizona 15 



Grind, variant name of crown-gall 8 



Hanepoot grape, susceptibility to crown-gall 11 



Herbemont grape, immunity to crown-gall 16 



History of crown-gall, occurrence, investigations, forms, etc 8-9 



Husmann, Dr. George C, aid in securing data in relation to crown-gall 18 



Insects, cause of crown-gall, authorities 20 



Investigators of crown-gall, causes ascribed 20-22 



list 8-9 



Irrigation, surface, agency in spreading crown-gall 25 



Italy, importance of crown-gall 10 



investigators of crown-gall, list 8 



Krebs, variant name of crown-gall 8 



Kropf , variant name for root galls 8 



Leaves, effect of crown-gall 14 



Lenoir grape, value as grafting stock 27 



183 



