16 
The RURAL NEW-YORKER 
January 7, 1922 
This will announce the opening of the 
Dosch Chemical Company, with general 
office and plant at Louisville, Kentucky, 
an organization devoted to the prepara¬ 
tion of fungicides and insecticides which 
the research of Experiment Stations and 
the field work of County Demonstration 
Agents have shown to be scientifically 
correct and commercially practicable. 
With the firm conviction that the 
dusting method of insect and plant dis¬ 
ease control offers the brightest hope of 
profit to the fruit and vegetable grower, 
the Dosch Chemical Company will con¬ 
centrate upon the production of the 
finest dusts and the best dusting ma¬ 
chines. 
This belief represents the combined 
experience of the plant pathologists, en¬ 
tomologists, practical fruit men, and field 
workers whose names are listed in this 
announcement. 
Nevertheless, it is not the intention of 
the Dosch Chemical Company to offer 
the dusting method of control as a cure- 
all or a miracle worker. This organiza¬ 
tion proposes to conduct its operations 
upon a plane that will win the approba¬ 
tion of scientific research workers in this 
field, and the priceless confidence of 
the grower. 
There are some territories for which 
we would consider desirable representa- 
tiom We would be glad to hear from 
dealers where we have not already 
made connection. 
Listed below are the products upon 
which the manufacturing ability of the 
Dosch Chemical Company will be cen¬ 
tered in the endeavor to produce a 
better quality of dusting material and 
dusting machinery than have ever been 
made before. 
PRODUCTS 
Nicotine Contact Dust. Will control the various 
forms of aphis (plant lice), pear psylla, leaf 
hopper and apple red bug. 
Nicotine Sulphate. Added to liquid sprays will 
control the pests which are controlled by nicotine 
contact dust. 
Lead Arsenate. For all chewing insects. Mixed 
with dusting sulphur in the control of fungus 
diseases as well. 
Calcium Arsenate. A powerful poison which is 
designed for the control of boll weevil in cotton, 
tobacco worm, alfalfa weevil and potato beetle. 
Dusting Sulphur. To prevent apple scab, brown 
rot of stone fruits, cherry leaf spot and other 
diseases. 
Copper Lime Dust. Used as a summer dust in 
combination with arsenate for the control of 
fungus diseases and chewing insects of apple, 
pear, plum, grape, potato and other vegetable 
crops. Used alone for celery and potato blights. 
Dehydrated Copper Sulphate Dust. For com¬ 
bination with lime in copper lime dust. 
Soluble Lime Sulphur Compound. Used in the 
control of San Jose and other scale insects and 
peach leaf curl. 
Improved Dusting Machinery. Power, traction 
and hand dusters for fruit trees, vegetables, 
truck crop, cotton, tobacco, flowers and shrubs. 
