246 
and G treatments were more effective than 5. But one noteworthy ex¬ 
ception existed in the first section treated 5 times with ammoniacal solu¬ 
tion, which is possibly explainable by superiority of soil. 
Below are given in Table 4 the notes on foliage and caliper made Octo¬ 
ber 19, 1892: 
Table 4 . —Showing condition of Japan stocks as regards foliage and caliper. 
Section.* 
Treatment. 
Estimated per cent 
of foliage dropped. 
Average 
caliper 
ot'un- 
budded at 
collar in ^ 
of inch.' 
Budded 
stocks. 
Un¬ 
budded 
stocks. 
Aal 
Ammoniacal solution, 5 treatments. 
0 
0 
- 
2G. 6 
Bal 
Do. 
0 
80 
13.4 
Cal 
Do. 
80 
80 
15 0 
Aa2 
Ammonical solution, 6 treatments. 
0 
50 
20 3 
Ba2 
Do. 
0 
15 
24 7 
Ca2 
Do. 
85 
60 
21. G 
Abl 
Bordeaux mixture 5 treatments. 
0 
10 
18. 7 
B1>1 
Do. 
0 
25 
19. 7 
Cbl 
Do. 
40 
50 
21. 3 
A 1)2 
Bordeaux mixture, 6 treatments... 
0 
5 
21. 5 
Bb2 
Do. 
0 
10 
18. 5 
Cb2 
Do. 
0 
0 
23 1 
D-I 
Untreated (budded). 
15 
D-II 
Do. 
40 
D-I II 
Do. 
95 
D-IV 
Untreated (not budded)... 
98 
13.2 
* Designations in this column refer to the varieties of “buds,” for details of which, see p. 201. 
It is noticeable from the above table that Bordeaux mixture afforded 
the greatest immunity; also that the untreated unbudded stocks made 
much less growth than those treated with Bordeaux. A reference to 
the plan (p. 257) will show the situation of the row (No. IX). When it 
is remembered that of all of the French stocks, those standing in row 
VIII only 3J feet distant, made the best growth, the element of soil 
difference is hardly to be considered as a disturbing factor. 
AMEBIC AN PEAR STOCKS. 
1891 .—Four rows containing 1,G73 stocks were subjected to a course of 
treatment similar in every respect to that given the French and Japan 
stocks. Owing to the lateness of the season when application was made 
to the growers of American seedlings only second-grade stocks were to 
be obtained. Because of this unfortunate but unavoidable circum¬ 
stance no comparison could be drawn as to the comparative value of 
American, Japan, and imported French stocks. The results of the treat¬ 
ments with fungicides while not as striking as with the French stocks, 
are valuable as adding testimony to the efficacy of the Bordeaux* 
Seven treatments with this mixture proved entirely efficacious, raising 
the percentage of stocks wholly free from the disease from two-tenths 
ol 1 per cent to 39 per cent. On October 9 a count was made of the 
* See Bull. No. 3 Div. Veg. Path., p.59. 
