Niagara Dust and Spray Mixtures 
KOLODUST. A new sulphur dust that you can 
see stick through wind and rain. Extreme 
fineness of particles, together with high toxic 
properties, make Kolodust the superior fungi¬ 
cide sulphur dust. Used for control of apple- 
scab, brown rot, and many other fungous 
diseases. 
KOLOTEX. Same type of sulphur as Kolodust, 
but combined with poison for control of chew¬ 
ing insects as well as diseases. 
KOLOFORM. The ideal summer spray for 
peaches, plums, etc., for control of apple-scab, 
brown rot, and other diseases. Will not burn 
when used jit the rate of 1 Yl pounds to 50 gal¬ 
lons of water. Mixes readily and stays in 
suspension. 
KOLOFOG. This colloidal sulphur spray is a 
special-processed spray and is non-caustic to 
fruit, foliage, and operator. While primarily a 
disease preventive, it has been known to arrest 
stubborn cases of scab after infection has 
occurred. It will mix with lime-sulphur spray- 
oils, nicotine sulphate, and arsenate of lead. 
DUO-BORDEAUX. Not a dry Bordeaux but 
materials for making real Bordeaux mixture, 
with every Bordeaux membrane fresh—ready 
to stick and protect. 
P. A. NICOTINE DUST. A 4 per cent Nicotine 
Dust for aphids, red bug, pearpsylla, cucumber 
beetles, etc. The best contact dust for con¬ 
trolling sucking insects. 
COLLOIDAL SPREADER. The use of Col¬ 
loidal Sulphur with lead arsenate and lime- 
sulphur increases the compatibility of the 
mixture and reduces the formation of sludge, 
improves the spread, increases the efficiency of 
the arsenical in the spray, and aids in the pre¬ 
vention of arsenical injury. The coverage 
is smooth and even. 
ROTENONE. (Non-poisonous.) The safest 
bug-killing dust or spray. Absolutely harm¬ 
less to man or beast if used according to direc¬ 
tions, yet it will kill, and kill quickly, bugs, 
beetles, worms, and caterpillars, some plant- 
lice, and thrips. It is a combination of Ro- 
tenone and Pyrethrum with a smooth, fast¬ 
dissolving carrier. 
MAGNESIUM ARSENATE. Used for the 
elimination of bean bettles, caterpillars, etc. 
For wet spraying, use 1 pound to 50 gallons of 
water. Care should be taken that the under 
sides of the leaves are thoroughly sprayed. 
For dry spray, add 4 pounds Hydrated Lime to 
each 1 pound, and dust four times during the 
growing season. 
Weed-Killers 
ATLACIDE. A non-poisonous Weed-Killer to 
be used as a dust, or it can be dissolved in 
water and used as a spray. One pound is 
sufficient to kill 100 to 450 square feet of 
weeds and grasses. Kills poison ivy, quack 
grass, thistles, and many other kinds of 
troublesome weeds. Lb. 50 cts.; 3J^-Ib. can 
$1.50. 
Rat and Mouse Killers 
K. R. O. Will rid your premises without en¬ 
dangering your pets, live-stock, poultry, etc. 
Harmless to animals other than rats and mice. 
2-oz. pkg. 75 cts. 
DOLCO MOUSE CEREAL. Sanitary, clean, 
and easy to use. No mixing necessary. While 
not attractive to domestic animals, it is best 
to keep dogs, cats, and other pets away from 
this material. 25 cts. 
DOLGE WEED-KILLER. A clear, concen¬ 
trated, super-strength liquid chemical which 
sinks into the ground, destroying the tops and 
roots of all existing growth. One quart makes 
from 20 to 40 quarts by adding water. Qt. 
60 cts.; gal. $1.75; 5 gals. $8. 
PURFECK. Purfeck chickweed killer kills only 
chickweed and will not injure the grass, 
making it unnecessary to dig out the patches 
where chickweed appears. Qt. 75 cts.; gal. $2. 
Dogavvay 
A pioneer in a most welcome field and a spray 
that discourages animals, especially dogs, from 
injuring evergreens and other plants. Non- 
injurious to plants and to animals externally. 
As it may be diluted with three parts water, it 
is most economical. 8 ozs. 50 cts.; pt. 75 cts.; 
qt. $1; gal. $3. 
Seed Disinfectants 
SEMESAN BEL. An instantaneous dip-dis¬ 
infectant for seed potatoes. 
4-oz. tin 5-Ib. tin 100-lb. drum 
1-Ib. tin 25-Ib. pail 300-lb. drum 
SEMESAN 
corn. 
4-oz. tin 
1-Ib. tin 
JR. A dust disinfectant for seed 
5-Ib. tin 100-Ib. drum 
25-Ib. pail 300-Ib. drum 
SEMESAN. A general dis¬ 
infectant for many vege¬ 
table and flower seeds or 
bulbs and certain plant- 
diseases. 
2-oz. tin 
1-Ib. tin 
5-Ib. tin 
CERESAN. A dust disin¬ 
fectant for wheat, oats, bar¬ 
ley, and certain other cereals. 
8-oz. tin 25-Ib. pail 
1-Ib. tin 100-Ib. drum 
5-Ib. tin 300-Ib. drum 
25-Ib. pail 
100-Ib. drum 
300-Ib. drum 
PRICES SUBJECT TO CHANGE WITHOUT NOTICE 
W. E. BARRETT CO., Providence, R. I. 
Miscellaneous 51 
