102 THE CROWN-GALL AND HAIRY-ROOT OF THE APPLE TREE. 
Page. 
Apple, varieties, susceptibility to crown-gall and hairy-root............ 40, 41-43, 85 
Walbridge, susceptibility to crown-gall and hairy-root.............. 40, 42, 85 
use in top erattine’on Wealthy applessss2=s2 25 eee eee 65 
Wealthy, effect of galls, orchard at Arlington, Nebr...-...-.........-.- 36 
susceptibility to crown-gall and hairy-root. 40, 41, 42, 43, 72, 74, 85, 86 
top grattine swath Walmer sso 2s eee er on geen eee 65 
_ Whitney, susceptibility to crown-gall and hairy-root.............-. 42, 43, 85 
Wolf River, susceptibility to crown-gall and hairy-root................ 40, 
41, 42, 43, 72, 74, 85, 86 
Yellow Bellflower, susceptibility to crown-gall and hairy-root......... 85 
Transparent, susceptibility to crown-gall and hairy-root....... 41, 
42, 43, 72, 74, 85, 86 
York Imperial, susceptibility to crown-gall and hairy-root............ 85 
Arkansas Agricultural Experiment Station, apple trees diseased with hairy- 
FOOL, ADPEATAMCes F255 oo cee Se ee ee ov 
Bacterium ‘tumetactens, cause of. crowm-vallegss ee ee ee ee 15 
from soft crown-gall of peach, inoculation of apple 
SHSM. Se ect Re Sate Ege Oars ee en en 44 
Baldwin apple. See Apple, Baldwin. 
Bell, C. C., statement on appearance of orchard trees affected with crown-gall- 36. 
Ben Davisapple. See Apple, Ben Davis. 
Benoniapple. See Apple, Benoni. 
Blair, W. 8., report on occurrence of hairy-root in Ontario..................-.. 12 
iBorerssinjury toapple treess= eee ea ee eee SPR a sR ee 33, 39 
Botrytis, fungus attackimestoredieraitsiees ss 6 eee ee 2 67d 
iBroom-foot, description) occurrences ClCee sem sae a eee 14-15, 70, 71 
Variant name Tor Wairy-TOOt. ees se ee 9 
See also Hairy-root. 
Brown, Nellie) investization or haity-L00bs- o> ase ee ee eee 16 
Budded trees. See Trees, budded. 
Budding, apple trees, method for control of crown-gall and hairy-root......... 59 
recommended for certain varieties of apples......................-. 73-74 
Burton, J. A., statement on effect of hairy-root on apple trees................- 37 
Butz, G. C., attempt to prevent disease im-orchards5- 4-2 see ee 58 
experiment with apple trees affected with galls................-- 31 
experiments for, cure of Crown-gall es no ee ee ees 68-69 
statement on communicability of crown-gall...........-.--..--- 45 
California, propagation of apple, method recommended.................-.-.-- 19 
Callus; formation, relation to erowm-palle pees eee 46-48, 66-67 
on root grafts, wrapping for control of crown-gall and hairy-root......-.- 61 
packing apple grafts for control of development 2). -— = are ere 67, 73 
relation to wounds, experiment 29-2) 2a eee Oe eee 46-48 
Central States. See States, Central. 
Clinton, G. P., report on experiment for cure of crown-gall and hairy-root....- 69 
Cloth, use in wrapping root grafts, method, directions, etc. ....-----..-- 61, 63, 64, 73 
Copper, sulphate, use as spray for nursery bins.--.....-.-..------------.---- 59 
On Toot eraltsand ScionSs:s2-+-s- oe eee eee eee 65-66, 92 
Crab apple. See Apple, crab. 
Crown-gall, aerial form, description, occurrence, etc.-..-.---.---------------- 15 
almond, transfer to the apple, experimemtos:s2------=- -- a= =a 44 
and hairy-root, affected trees to be destroyed.............-------- 73 
communicability in nursery and orchard.....-. 44-57, 86 
cure and prevention=.—. 2 ssc) -a-=4--- eee eee 58-70 
186 
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