— 6o — 
diluted and it may be distributed by means of blowers made 
for the purpose or by inclosing in a cheesecloth sack and 
shaking it over infested plants. 
Its chief uses are for the destruction of plant lice, cab- 
bage worms, flea-beetles, squash-beetles, ants, cockroaches 
and house flies. 
LIME, SULPHUR AND SALT WASH. 
The following preparation is a favorite one on the 
western coast for the destruction of scale insects and the 
Brown Mite. For the latter insect it i.'5 reported to be en- 
tirely successful about Grand Junction in this state. The 
following formula and method of preparation I quote from 
Circular 3, Second Series, Division of Entomology, Wash- 
ington, D. C. The paper is by Dr. L. O. Howard: 
Unslaked lime 10 pounds. 
Sulphur 5 pounds. 
Stock salt 4 pounds. 
Water to make 15 gallons. 
This wash will do great damage to the trees if applied 
during the growing season, and should be used only in win- 
ter. All the sulphur and half of the lime are placed in a 
kettle and 8 ^ gallons of water added, after which the con- 
tents of the kettle are boiled briskly for about an hour. The 
solution, which at first is yellow from sulphur, will turn very 
dark brown, assuming more or less of a reddish tint, and 
will finally change from a thick batter to a thoroughly liquid 
condition, the product being ordinary sulphide of lime. All 
the sulphur is added to the remaining five pounds of lime 
and the latter slaked, after which the slaked lime and salt 
are added to the sulphide of lime already obtained, the 
whole being then diluted with water to make 15 gallons. 
This should be strained before application, as it does not 
form a perfect liquid solution.'’ 
