ol 
It must be borne in mind that these figures are far in excess of what 
the work would cost in spraying an acre or more. When considering 
the matter from this standpoint it will be fair to make the estimates fully 
50 per cent less. Thus the cost of treating a vineyard six times with 
Bordeaux mixture, full strength, need not exceed $15 per acre. Using 
half strength the cost would be reduced to $10 per acre. 
CONCLUSIONS. 
(1) With the exception of the Bordeaux mixture all of the fungicides 
used in Vineyard 6 more or-less injured both leaves and fruit. 
(2) This injury, while more than offset by the protection of the fruit 
from rot, is to be looked upon as a serious drawback to the use of the 
preparations. 
(5) The preparations, however, are all worthy of further trial, as it 
may be possible by a modification of the formule to largely overcome 
the difficulties set forth under 1. 
(4) In the prevention of black rot all the preparations gave good re- 
sults, the average for the copper preparations being higher than that 
of the solutions containing none of this metal. 
(5) Taking cost, ease of preparation and application, effect on foliage 
and fruit, and all other questions into consideration, the Bordeaux 
mixture, even though reduced to less than one-sixth the usual strength, 
proved the most reliable remedy against rot. 
(6) In Vineyard 6 Bordeaux mixture, half strength, gave practically 
as good results as the same preparation full strength. 
(7) Inevery case early treatments gave decidedly better results than 
late ones. 
(8) Six treatments, the last two after the grapes were practically 
grown, gave little better results than four, the last being made when 
the berries were the size of bird shot. 
EXPERIMENTS IN THE TREATMENT OF APPLE SCAB IN WISCONSIN, 
This work, as in the two preceding years, was carried on by Prof. E. 
S. Goff, of the State Experiment Station at Madison. The orchard ot 
Mr. A. L. Hatch, near Ithaca, was again selected for the work, partly 
on account of its location in a large apple-growing region and partly 
because the necessary trees could not well be obtained near Madison. 
The experiment was designed to obtain information on the following 
questions: 
(1) The effect of one winter treatment on scab. 
(2) The effect of one winter and one early spring treatment on the 
disease. 
(3) The effect of one winter treatment and three sprayings after the 
falling of the petals, 
