New York AGRICULTURAL EXPERIMENT STATION. 689 
the ammoniacal solution of copper carbonate when six treatments 
with each are compared; the ammoniacal solution of copper 
carbonate was evidently injurious to the health of the foliage.* 
With plums on Myrobolan stock the fungicides proved effec- 
tive in that the treated trees lost only a small number of leaves 
as compared with the untreated trees. 
On Marianna stock the treatment prevented the iene blight to 
a notable degree.t The ammoniacal solution of copper carbonate 
proved inferior to the Bordeaux mixture since it injured the 
treated foliage. 
Experiments of 1893. 
At the request of several nurserymen who were much inter- 
ested in the above-mentioned experiments, after consulting with 
Mr. Fairchild, it was decided that the Station Horticulturist 
should continue the treatment of the plums and cherries during 
1893 with those trees which had been spraved with Bordeaux 
mixture, but to discontinue the treatment with those trees which 
had been sprayed with ammoniacal solution of copper carbonate, 
since the previous years investigations had shown that this solu- 
tion was injurious to the foliage. 
The nursery stock included in the experiment consisted of the 
same trees with which Mr. Fairchild had conducted his investi- 
gations during 1891 and 1892, and the plan of the nursery may 
be seen by referring to the publications above mentioned. The 
buds were set in 1891, and the trees in 1893 were, therefore, 
making their second season’s growth from the bud. 
Cherries. 
The cherry stock consisted of Windsor, Yellow Spanish and 
Montmorency on Mahaleb and also the same varieties on Maz- 
zard. Although the leaf blight had been prevalent among these 
trees in 1892,{ they were practically free from the disease in 
1893, and the treated trees consequently showed no appreciable 
advantage over the untreated trees. They were given the same 
treatment as that hereafter described for plums. 
* Jour. Myc., VII, p. 252; Annual Report of N. Y. State Expt. Station, 1892, 
p. 658. 
+ Jour. Myc., VII, 255; Annual Report N. Y. State Expt. Station, 1892, p. 662. 
tJour. Myc., VII, pp. 252 and 254, plates XXVI, XXVII; Annual Report 
N. Y. State Expt. Station, 1892,"pp. 656 and 658, plates 25 and 26, 
87 
