A Stem Bught oe Field and Garden Peas 
33 
TABLE VI—Continued 
Observations on 25 Field Pea Plants on the Ranch of W. F. Ulray, 
Center, Colorado, June 12 to June 24, 1915 
Plant No. 
Date of Observation: 
June 12, 1915. 
June 17, 1915. June 24, 1915. 
7. 
Normal, no dis¬ 
ease. 
Stem and leaves 
both diseased on 
first 5 internodes. 
Many separate leaf 
infections; growth, 
1 —% in. 
Practically no 
changes. 
• 
8. 
Not diseased, but 
inoculated by prick¬ 
ing into stem with 
knife infected from 
diseased plant. Sec¬ 
ond shoot pricked 
with knife before 
contamination. 
Stem shows decided 
watery yellowish 
patches where in¬ 
oculated. 
Check plant nor¬ 
mal; growth 2 in. 
Inoculated plant 
shows disease over 
6 internodes; 
growth 2^ in. Pour 
new shoots coming 
up. Check plant 
normal; growth 4 
in. 
9. 
1 
Slightly infected, no 
marked discolor¬ 
ation. 
Seven internodes in¬ 
volved, watery new 
shoots starting; 
in. growth. 
Disease has not 
spread; growth 6 
in,, new shoots ap¬ 
peared, 1 in. long. 
! 10. 
i 
Two shoots normal. 
One shoot very 
badly involved, 
other normal, with 
2 44 inch growth. 
Diseased shoot prac¬ 
tically dead; other 
branch normal; 2 44 
in. growth. 
i 11. 
i 
1 
Entire clump of 
shoots infected. 
All shoots sickly; 
44 in. growth. 
Disease checked; 
growth 5 in. 
I 12. 
i 
Normal. 
Normal; growth 2 
in. 
Normal; growth 2 
in. 
i 
_ 1 
S 13. 
1 
1 
1 
Badly infected up 
to 5th internode, 
inclusive. 
Infected over 7 in¬ 
ternodes; growth % 
in. New shoots de¬ 
veloping. 
No growth: 1 new 
shoot dead and 3 
others just starting 
