2 l6 
Journal of Agricultural Research 
Vol. XIV, No. 5 
Table I.— Results of the potato-stem inoculations with Rhizoctonia solani, Fusarium 
spp ., and several other fungi— Continued 
Name of culture. 
Date of isolation. 
Num¬ 
ber of 
plants 
inocu¬ 
lated. 
Num¬ 
ber of 
plants 
in¬ 
fected. 
Character of injury produced. 
R. solani, R 186 L (from 
potato). 
1910 
3 
F. solani, R.361L (from 1915. 
pine. 
Fusariumcoeruleum . March, 1915... 
3 
3 
F. discolor 
1908 
8 
F. discolor ’va.r.sulphureum 
June, 1909.... 
3 
F. eumartii 
January, 1914. 
6 
F. oxysporum 
October, 1916. 
8 
F. radicicola 
February, 1916 
4 
F. solani . 
F. trichoihecioides 
February, 1914 
October, 1916.. 
3 
4 
Alternaria sp. I 
1916 
5 
A . solani 
1916 
3 
Botrytis sp. I (from po¬ 
tato leaf). 
Botrytis sp. II (from po¬ 
tato stem). 
ScUrotinia sp. (from a 
sclerotium inside of 
stem). 
Zygorhynchus sp.. 
1916 
1916 
1916 
1917 
8 
6 
2 
3 
Corethropsis sp 
Phoma sp. 
1917 
1916 
3 
6 
Acrostalagmus sp 
1917 
6 
Clonostachys sp 
1917 
6 
Verticillium albo-atrum I 
(from eggplant). 
V. albo-atrum (from po¬ 
tato). . . 
Verticillium sp. (from 
okra). 
September, 1915 
1917. 
1917. 
3 
3 
3 
2 
0 
No infection in case of meli- 
lotus culture and only 
slight browning on stems 
inoculated with rice and 
potato cultures*. 
3 
8 
3 
6 
8 
3 
o 
4 
5 
3 
8 
6 
2 
Small dark lesions on stems, 
stolons, and roots. 
Lesions on stems and occa¬ 
sionally on roots; in two 
instances injury very se¬ 
vere (from rice culture), 
others only slight. 
Small lesions on stems and 
stolons. 
Serious stemrot in two in¬ 
stances; deep cankers on 
the remaining stems; 
lesions on roots and sto¬ 
lons. 
Deep irregular, brown le¬ 
sions on stems and occa¬ 
sionally on stolons. 
Deep dark-brown lesions on 
stems, stolons, and roots 
(melilotus culture pro¬ 
duced no effect). 
Only slight discoloration. 
Very large dark, deep cank¬ 
ers on stems; lesions on 
on roots and stolons. 
Distinct brown necrotic 
areas varying in severity 
on different plants. 
Large dark-brown cankers 
on stems. 
Distinct brown but shallow 
lesions on stems. 
Severe dark-brown lesions 
on stems. 
Do. 
3 
3 
4 
6 
6 
3 
3 
Shallow lesions on stems 
and stolons. 
Shallow lesions on stems. 
Superficial russeting only 
(on stems). 
Irregular, brown, lesions on 
stems. 
Irregular, light-brown, some¬ 
what depressed lesions on 
stems. 
Slight amount of russetting 
on stems. 
Slight discoloration of stems. 
3 Do * 
