314 REporT OF THE ACTING POMOLOGIST OF THE 
the lump sulphate not being as soluble in water, costing about seven _ H 
cents per pound. The lime was quick lime (not air slacked). 
The first application was made just before blooming; the second as 
soon as the vines were out of bloom. These two applications were 
followed by one application of ammoniacal copper carbonate, three 
ounces carbonate copper in one quart ammonia, 22°, Beaume, in ~ 
twenty-two gallons of water, applied in same quantity (forty-four 
gallons to acre) with same appliances. 
The time of application was about July twenty-four. The result 
of these applications can best be determined by comparison, although 
the general statement may be made that while there was an occasional 
leaf ‘and berry affected with black rot and brown rot, close scrutiny 
was necessary to detect disease in either Mr. Fairchild’s or Mr. Moore’s 
vineyards, which, so far as damage to the fruit or vines is concerned, 
can practically be said to be of no consequence at this writing. 
The result of the experiment, however, is more clearly shown by a 
comparison between Mr. Moore’s vineyards, all of which was treated 
as above, and his neighbor’s, Mr. Rose, not treated, and only separated 
by a narrow path, locally known as a “section line” (no fence between), 
and same variety of grape, cultivation, size, growth and fruitage of 
the two vineyards the same. In Mr. Moore’s treated vineyard a row 
of seven vines showed no black rot or brown rot on either fruit or 
leaves, except, perhaps, an occasional spot on the leaves so old and so 
affected by the sprayings as to be indistinguishable as either the 
effect of black rot or downy mildew, while his neighbor’s untreated 
vineyard showed fully fifty per cent of loss by both black and brown 
rot on the fruit, both occurring on the same bunch. 
A closer comparison may be made by the statement that the first 
vine in the untreated vineyard showed this condition in both new and 
old cases of both black and brown rot, frequently both on the same 
bunch of fruit, while the first vine in the treated vineyard, not over 
ten feet between the two, was practically free from affection of any kind. 
It might be generally stated that what specimens of either black 
rot (Physalospora) or brown rot (Peronospora) were almost univer- 
sally old affections arrested by the treatment, and were principally of 
old specimens of the brown rot, and the query seems to be in place 
here whether if the ammoniacal copper carbonate had been made 
earlier the brown rot might not have been sooner arrested, and if 
this does not suggest the earlier spraying with the ammoniacal solu- 
tion, say immediately succeeding the second Bordeaux spraying, if 
indeed not taking its place, if, as seems to be the case, brown rot 
prevails in localities which are exempt from black rot. 
