23 
Table showing the results of treatment of raspberry and blackberry for Septoria. 
Sprayed with— 
Yield of 
berries. 
Weight 
of bear¬ 
ing wood. 
Calculated 
yield on 
100 pounds 
of i earing 
wood. 
Raspberry: 
Quarts. 
Pounds. 
Pounds. 
Cuthbert (sprayed 3 times).. . 
Bordeaux mixture. 
3 h 
10.5 
33. 33 
Copper carbonate.. 
14 
15.5 
90. 32 
Mixture No. 5. 
16* 
22 
73.86 
Check. 
21* 
14.5 
146 55 
Gregg (sprayed 4 times). 
Bordeaux mixture. 
2.4 
12.5 
19.2 
Copper carbonate. 
4J 
16 
29.12 
Mixture No. 5. 
3| 
16* 
13 
28. 84 
106.21 
Blackberry: 
Check not sprayed. 
15.3 
Stone’s Hardy (sprayed 6 times)... 
Bordeaux mixture.. 
17 
19.5 
87.02 
Copper carbonate. 
19* 
18 
106.94 
Mixture No. 5. 
14* 
14 
101.79 
Check. 
13* 
16. 5 
83. 33 
Ancient Briton (sprayed 6 times).. 
Bordeaux mixture. 
10! 
8. 25 
130. 3 
Copper carbonate. 
17! 
8 
221.87 
Mixture No. 5. 
16* 
8.125 
200 
Check not sprayed. 
18* 
9.5 
205.48 
From the table it would appear that the yield of raspberries was seriously iujured 
by all of the treatments, and especially by the Bordeaux mixture and Mixture No. 
5, but that the crop of blackberries was somewhat improved by the use of the copper 
carbonate. In the Stone’s Hardy, the yield seems to have sutfered from none of the 
treatments, and to have been improved by both the copper carbonate and Mixture 
No. 5, while in the Ancient Briton the crop seems to have been injured by the Bor¬ 
deaux mixture. 
The cost of making the individual treatments in the experiment upon the raspberry 
and blackberry would not differ much from that of spraying one apple tree with each 
of the fungicides. An estimate of the cost in the case of the copper carbonate may 
therefore be made by referring to the paragraph giving the cost of the apple spray¬ 
ings. The cost of the Bordeaux mixture would be slightly greater than that of the 
ammoniacal copper carbonate. 
From this experiment it is evident—(1) That the foliage of the raspberry is deli¬ 
cate, and can not endure applications of a corrosive nature; (2) that the foliage of 
the blackberry though more resistant than that of the raspberry is more susceptible 
to injury than that of the apple; (3) that none of the treatments given are to be 
recommended for the raspberry, and that of the materials used only the copper car¬ 
bonate solution can be pronounced beneficial in the case of the blackberry. 
EXPERIMENT IN TREATING THE POTATO ROT. 
The only fungicide tested in this experiment was the Bordeaux mixture prepared 
as noted in the preceding article. The plat selected for the experiment included 
about half an acre of ground nearly in the form of a square, and was planted with 
snowflake potatoes May 31, the seed being placed iu hills 3* feet apart each way. 
Five rows extendiug through the center of the plat in each direction were staked 
off as a check area, the four corner plats thus separated being subjected to the treat¬ 
ment. The S W. plat was treated with the Bordeaux mixture at its full strength ; for 
the NE. plat the mixture was diluted about one-fourth; for the SE. plat about one- 
third, and for the NW. plat about one-half. 
The first treatment was given July 3d, at which time the plants were 3 to 15 inches 
high, and apparently entirely healthy. Other treatments were given July 14 and 25, 
August 6 and 19, and September 2. 
More or less of the mixture was visible upon the vines at all times after the first 
spraying until the crop was harvested. At thetimeof the fifth spraying (August 19) 
it was evident that the treatment was bearing fruit, as the foliage of the check rows 
