
HARVEY SEED COMPANY, INCORPORATED, BUFFALO, N. Y. 
DDT INSECTICIDES 
Knox-Out Insect Spray—Knox-Out 
Insect Spray is an AA household 
insect spray, containing 5% DDT. 
It has double action, 9914% knock- 

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uf down and 99%-+ kill and in addi- 
mnsecT SPRAY 
tion it gives a residual action when 
sprayed on surfaces which kills in- 
sects which light on them. The resi- 
due is effective for some time, from 
a few weeks to three months. Knox- 
Out Insect Spray is highly efecient 
in controlling flies, mosquitoes, ants, 
fleas, bed-bugs, roaches and other household insect 
pests. Pleasantly perfumed. Packed in colorful litho- 
graphed cans, handy for use. Pints 35c, quarts 65c, 
gallons $2.35. 
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{WosOUITOES, 
FLIES, MOSOU! 
MOTHS, BED BUGS, ars 
ROACHES, SHLVERFISY 
AND CARPET ecerut 

Knox-Out Insect Powder—Knox-Out Insect Powder con- 
tains 10% DDT. This product is a decided improvement 
over old style insect powders. For use in homes, fac- 
tories, dairies and institutions. It is especially pre- 
pared to control crawling insects and also for use where 
oil sprays or water emulsions are not desired. In out of 
the way corners and cracks it will reach many insects 
that other methods would not touch. Insects carry it to 
their quarters and affect the young. It is efficient for the 
control of ants, bed-bugs, certain roaches, poultry lice, 
dog fleas and some dog ticks. Not used on cats. Knox- 
Out Insect Powder is packed in a fine efficient bug-gun 
containing 8 ounces. 50c. 
Indor Fly Spray—This product is the same as our previous 
Indor with 5% DDT added. This will be a general pur- 
pose insecticide of a very high efficiency. It will knock 
insects out of the air and also leaves a residue on surfaces 
which will have insecticidal action. It is particularly 
packed for dairy, food plants, factories and institutions 
in 5 gallon, 15 gallon, 30 gallon and 50 gallon sizes. 
5 gal. can $11.25. 
Pennsalt DDT Emulsion—Ready to add to water, to spray 
walls of barns, factories, and other buildings. Contains 
three pounds DDT per gallon of concentrate. Goes 
further. Add one quart to 15 quarts of water to cover 
4000 square feet of walls, ceilings, or other surfaces. 
Gives 90 to 100 milligrams of DDT per square foot. 
Lasts one to three months. Kills insects that light on 
surfaces. Packed in one gallon cans. $7.45 gal. 
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Knox-Out Garden Dust—This is a simple 
dust containing 5% DDT and a dusting 
element. The advantage of DDT in this 
is that it may be used for corn earworms, 
corn borers, and it is particularly 
efficient for potato bugs. It is one of 
the very few insecticides that may be 
used to control the Japanese Beetle, 
where it is found. 1 Ib. can 30c, 3 Ib. 
bag 75c. 
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Pensalco Livestock Spray—Pensalco Livestock Spray is a 
wettable dust containing 50% DDT. It is mixed with 
water and applied to dairy cattle as a spray for fly 
contro]. Controls horn flies, mosquitoes and certain 
other flies. A complete application is made to each 
animal to give fly resistance and fly killing coat to each. 
One 4-lb. package makes 50 gallons of spray. By using 
about three quarts per animal it gives a coating which 
will last from 10 to 30 days. Proved highly efficient in 
official tests. Packed in 4-lb. bags, 12 to the case. A 
4-lb. bag will treat 25 to 30 cattle once. $3.80 per 
4-Ib. bag. 
Kryocidé 
Kry-o-cide p-50 
Kry-o-cide D-50 — Natura! Cryolite 
mixed with sulphur. Used as a dust 
only—kills most garden pests, and con- 
trols certain plant diseases such as 
powdery mildew, or black spot. Pro- 
duces no injury, such as burning to 
fruit or vegetables. It is not decomposed 
by sunlight or weather. 1 Ib. sifter can 
50c, 3 Ib. bag 85c. 
Kry-o-cide C 
Beg US Por. OF 





with copper. May be used as a dust 
or spray. It is a combined insecticide 
and fungicide where copper is indi- 
cated for certain fungi and plant dis- 
eases. 1 Ib. can 55c, 3 Ib. bag 90c. 
D) Kry-o-cide C—Natural Kryolite mixed 
it 
if 

KILLS ANTS—In the Nest! 
This Scientific Method is Safe, Sure, Permanent 
Antrol is easy to use, economical, with rust-proof 
aluminum lids, safe around children and pets. Consists of 
small, heavy glass containers from which worker ants carry 
special Antrol Syrup to their nests for food. The whole ant 
family is quickly killed at the source—the only way to get 
permanent relief. Controls both sweet and green-eating 
ants. 
Prices—Anntrol Ready-filled Sets, 
containing 4 filled Feeders....40c 
Antrol Regular Sets—4 Containers 
and 4-oz. Bottle Syrup—enough 
for two fillings. .%.0s.eeee oes 75c¢ 
Antrol Syrup for refilling, 4-0z. 
Bottlesctracecie coin eee 20c 
Antrol Syrup for Refilling, Pint 
Bottles sentence tek 50c 

Regular Set 
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Terro Ant Killer—A liquid to be placed on small pieces of 
cardboard or other receptacles. Very effective. Small 
bottle 25c; large bottle 50c. 
