32 
Colorado Experiment Station 
TABLE VI 
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 j June 17, 1915. 
June 24, 1915. 
1. 
West shoot badly 
infected; east shoot 
diseased at base. 
West shoot dis¬ 
eased all the way to 
terminal tendril; 
still growing. East 
shoot diseased to 
second branch; 
growth** y 2 inch. 
West plant ceased 
growing and throw¬ 
ing up new shoots 
3 inches high. East 
plant, growth 2 in. 
2. 
Shoot to east—first 
6 internodes badly 
diseased; trace on 
8th and 10th; an¬ 
other shoot of 
same plant affected 
just on 1st inter¬ 
node; another 
shows trace. 
East shoot dead; 
2nd shoot diseased 
over 1st 7 inter¬ 
nodes and traces on 
8th and 9th; 3d, 
just at base; 2nd 
and 3d growing. 
New branches 
starting which 
have made 4-inch 
growth — old un-l 
changed shoots. 
I 
3. 
Slight infection at 
base. 
Looks thrifty but 
Infection solid over 
5 internodes and on 
branch at 8th node; 
% in. growth. 
No advance in dis¬ 
ease; whole vine 
growing—3 in. 
4. 
Slight infection at 
base of one shoot 
and others normal. 
Infected shoot 
shows disease over 
6 internodes, 
in. growth; normal 
shoot 3 in. growth; 
1 dead shoot and 2 
others affected over 
4 internodes. 
Four-inch growth 
on all shoots. 
5. 
East vine infected 
on 4 internodes; 
west not; just 
starting to branch. 
East vine infected 
over 6 internodes, 
growth 11/4 in.; 2 
new branches have 
developed; west 
shoot normal. 
East plant bloom¬ 
ing—growth 2 in.; 
normal. 
6. 
One shoot infected 
on first 3 inter¬ 
nodes. 
Diseased on first 6 
internodes; growth 
4 in. 
No growth, altho 
infection is not 
spreading. 
♦Observations of June 12 and 24 made by Mr. Thomas. 
**The growth recorded refers to growth since last observation. 
