152 REPORT OF THE HORTICULTURIST OF THE 
home-grown powder fell first four times; those in the one con- 
taining the Buhach twice, and in the other trial both fell together. 
It should be said that the Buhach powder used was taken from a 
box that had been purchased some months before, from the New 
_ York agent of the Buhach Producing and Manufacturing Com- 
pany, and that had been opened, but the cover fitted tightly and I 
do not know that it had ever been left off for any length of time. 
The sample used was undoubtedly pure, but had probably lost | 
some of its original strength. Its odor, however, indicated that 
it was still in good condition. On the other hand the Buhach was 
undoubtedly ground much finer on the average than the home- | 
made powder. The latter was of a light-brown color, and its odor 
reminded one somewhat of that of the may weed, Maruta cotula, 
being quite distinct from.that of the Buhach. 
The plants of Pyrethrum rosewm mentioned above continued to 
blossom abundantly for several weeks, and would possibly have 
yielded more flowers than they did had none been permitted to 
form seed. At date (November 5) they are still alive and appar- 
ently in excellent condition, each having a large tuft of foliage 
which is still fresh. The flowers, which are very showy and of 
various colors, were much admired by visitors. Indeed, the plant 
is well worth growing for the beauty of its blossoms alone. 
SUMMARY. 
In a limited trial Paris green was more effectual than the 
“‘Zoektein poison” or London purple as a preventive from injury 
by the codling moth. 
Potassium sulphide has some value as a preventive of injury 
from the currant worm. | 
Kerosene, used in its pure state, was not injurious to the foliage 
of some plants, as the coleus and rose, while it was fatal to that 
of others, as the tomato and potato. 
Kerosene may be successfully atomized with water by means of 
of simple apparatus. Its value as an insecticide when applied in 
this way was not definitely settled. 

