10 LIME-SULPHUR PREPARATIONS FOR “APPLE DISEASES. 
In this experiment the comparative effect of the different mixtures 
on the codling moth was determined, and, as shown in Table I, the com- 
bination of lime-sulphur and arsenate of lead controlled this insect 
about as well as Bordeaux mixture and arsenate of lead. It seems, 
therefore, that the poisonous action of this arsenical is not reduced 
by combining it with the lime-sulphur preparation. 
THE EFFECT OF THE SPRAYS ON THE FRUIT. 
In all the orchards treated the fruit sprayed with the several lime- 
sulphur mixtures was smoother and more highly colored than that 
sprayed with Bordeaux mixture. The Bordeaux mixture russeted 
the fruit of the Ben Davis so that it did not have the ‘‘finish”’ required 
for fancy apples, and a small percentage of it had to be dis- 
carded as culls on account of the roughened appearance due to the 
mixture. The Yellow Newtowns were russeted considerably and the 
Winesaps only slightly, while the York Imperials showed practically 
no russet effect. 
The lime-sulphur preparations caused no russeting, or at most 
very little where the strongest solutions were used, and the fruit 
sprayed with these mixtures was smooth, clean, and well colored. 
The difference in color between the fruit sprayed with the Bordeaux 
and that sprayed with the several lime-sulphur preparations was 
very striking, and this feature alone would make the latter sprays 
preferable to the former if other things were equal. 
EXPERIMENTS IN MICHIGAN. 
Experiments similar to those in Virginia were conducted at Douglas, 
Mich., in cooperation with the Bureau of Entomology, and the results 
were much the same. The work was done by Mr. R. W. Braucher 
under the writer’s direction in the orchard of Mr. C. W. Gaylord. 
The trees were sprayed just before they bloomed (May 19 and 20), 
as soon as the petals fell (June 1 and 2), three weeks later (June 23 
and 24), and ten weeks after the petals fell (August 10 and 11). 
There were six plats of from 13 to 20 trees each, including the 
Wagener, Baldwin, Rhode Island, Roxbury, and Ben Davis varieties. 
The commercial lime-sulphur solution, diluted to contain 2 gallons 
to 50 gallons of water, without any arsenical, was applied to plat 1; 
the same solution, with the addition of 6 ounces of Paris green, 
was applied to plat 2; and the same solution, with the addition of 
2 pounds of arsenate of lead, was used on plat 3. Plat 4 was sprayed 
with self-boiled lime-sulphur (10-10-50) and 2 pounds of arsenate 
. of lead, and plat 5 was sprayed with 3-4-50 Bordeaux mixture 
and 2 pounds of arsenate of lead, while plat 6 was left unsprayed. 
The plats sprayed with the commercial lime-sulphur solution, espe- 
[Cir. 54] 
