-193 
This solution is prepared in the following manner to the. proportion 
in 
water. It is of practical utility to put lime in the water, and to 
give the emulsion a whitey colour, in order that the workmen may at 
once perceive to what parts of the vine it has been a plied. aif 4 
The liquid solution can be efficaciously given with a pumping machine 
ke a great economy of 
The mixed system has been very much recommended, thai is, alter- 
nating the liquid and dry treatments. 
delay to apply the liquid treatment, and in the first half of July that 
with sulphur and sulphate of copper, and then in the frst half of August 
end of Augus 
In order to be quite sure of contending successfully with the Peronos- 
pora it is necessary that each application should be preventative, that is, 
it should be made before the disease attacks the vine. 
The treatment should be repeated if rain storms nullify the effect. _ 
It has now been proved that sprinkling with sulphate of copper 
preserves the vines from other fungi and parasitic insects such as the 
different “ rots ” : —Anthraenose, Chlorosis, and at least to some extent 
from Rhynchites and Tortrix. 
e [Enclosure in No. 2.] oe 
TABLE showing importation of Sulphate of Copper, Zine, &e., into 
Italy during the years 1888 and 1889. ut UL PRU 
Wei ht. 3 A f e dna p= T 2 
a (Eranes.) 
(Quintals.) Value. (Francs.) 
1888. 
1889. 1888. | 1889. | 1888. . 1889. 
814,825 | 2,046480 | 55 | 
Sulphate of copper, | 14,815 | 34,108 
zine, &c. | 
The importation during the four months, from Ist Jai uary 
April 1890, consisted of 34,600 quintals of the value of fes. £ Ve 
The import duty is fes. 2 per quintal. aut wees aa Rd 
