THE ROCKY MOUNTAIN SEED CO. 
DENVER, COLO 
73 
«BI/ACK I.EAF 40” 
There are two distinct kinds of plant 
insects, the “chewing” (eating) kind and 
the “sucking” kind. 
The sucking insects feed by inserting 
their sharp, slender beaks into the inte¬ 
rior of the leaf, blossom, stem, or fruit. 
They cannot eat plant tissue, hence can¬ 
not eat poison. They must therefore be 
killed with a preparation which kills by 
coming into contact with their bodies; 
in other words, by a contact insecticide— 
”Black Leaf 40.” 
Black Leaf 40 is deadly effective 
against aphids (plant lice), thrips and 
leaf hoppers. A 35c bottle will make 6 
gallons of effective spray. 
Prices# not prepaid} 1 oz., 35cj 5 oz., $1.00; 1 lb., 
$2.25; 2 lbs., 5 lbs., $5.85; 10 lbs., $10.60, each. 
If wanted by parcel post add postage. 
NEW EVERGREEN 
Is effective against cabbage worms, cucumber and 
melon beetles, aphis, leaf hoppers, currant worms 
and most other insects, both chewing and sucking. 
Harmless to man and beast. Easily applied with 
any sprayer. One ounce makes six gallons of spray. 
Prices: 1 oz., 35c; by mall, 40c. 6 oz, size, $1.00; 
by mail, $1.05. 16 oz. size, $2.00; by mail, $2.10. Gal¬ 
lon size, $11.00; by mail, $11.50 
Treat Before Planting With 
SEMESAN 
For Disease Protection 
Increase Your Garden Pleasure and Your 
Farm Profits by Preventing Losses 
From Plant Diseases 
SEMESAN—For vegetable and Flower Seeds and Bulbs. 
Increases germination, makes stronger, earlier bearing 
plant. Controls damping-off of seedlings. Easily ap¬ 
plied. Full directions with each package. Prices: 2 oz., 
85c; 1 lb., $2.25; 5 lbs., $9.90, not postpaid. 
SEMESAN BEL—For seed potatoes. Effective control for 
scab, rhizoctonia and black leg. Protects from rotting, 
improves germination, produces a larger crop. One lb. 
treats 70 to 80 bu. of seed. Prices: 4 oz., 45c; 1 lb., 
$1.50; 6 lbs., $6.75, not postpaid. 
SEMESAN JR.—For field and sweet corn seed. Destroys 
disease germs on the seed, protects from rotting in cold, 
wet soil, makes earlier planting possible, reduces root 
and stalk rots, increases yield. Use 2 oz. per bu. of seed. 
Prices: 4 oz., 30c; 1 lb., 75c; 5 lbs., $3.25, not postpaid. 
NEW mPROVED CERESAN (For Wheat, Oats and Barley) 
—This ethyl mercury phosphate dust disinfectant is for 
the control of bunt or stinking smut of wheat, smuts of 
oats, and covered smut and stripe of barley. It is easily 
and quickly applied with a seed treater or by the shovel 
method. It does not reduce drilling rate nor damage drill. 
One pound treats 32 bushels of seed. Prices; 1 lb., 70c; 
5 lbs., $3.00, not postpaid. 
Kills rats, mice, ground 
hogs, wood chucks, prairie 
dogs, moles, pocket goph¬ 
ers, chinch bugs, ants and 
other insects. 
CYANOGAS (A) DUST—Is a grayish powder that gives 
off hydro-cyanic-acid gas when exposed to the air. This 
gas is deadly to rodent and insect pests and will kill 
them almost immediately. 
Write us for special circulars giving full 
information about the use of Cyanogas. % 
lb., 45c; 1 lb., 75c; 5 lbs., $3.00. Cannot be 
mailed. 
CYANOGAS. (G) FUMIGANT—For green¬ 
house mushrooms, and soil fumigation. 
Scatter over the greenhouse walks and 
close the house for the night. Generates 
deadly hydrocyanic acid gas which is very 
effective in controlling aphis, thrips, white 
fly and soft scale. 5 lbs., $3.00; 25 lbs., 
$10.00. Cannot be mailed. 
CYANOGAS ANT KILLER 
For Lawn and Garden Ants. The activ¬ 
ity of an ant colony centers around the 
queen. She never leaves the deeper p^t 
of the nest. To permanently destroy the 
colony it is necessary to kill the queen as 
well as worker ants. 
Simply enlarge entrances of nest with a 
pointed stick. Adjust spout on can and 
flow a small amount of Cyanogas into the 
hole. Then close with dirt. 4 oz. can, 30c. 
Cannot be sent by mall. 
FORMALDEHYDE—A valuable disinfectant. It is very 
effective when used to destroy smut germs in oats and 
scab on potatoes. Directions on can. Formaldehyde is 
also used by onion growers to control onion smut. 1 lb. 
can, 40c, i> 08 tpaid: 6 cans, $1.80, not postpaid. 
CORONA COPPERCARB 
For killing smut spores in 
wheat. Corona Coppercarb has 
been found to be highly effi¬ 
cient. It is a specially pre¬ 
pared product and nothing has 
to be added to it to get results 
desired. Circular matter giv¬ 
ing authoritative information 
can be had on request. Two or 
three ounces per bushel is 
recommended. Packed in 5-lb. 
carton. Price, 90c each; per 
case, 30 lbs., $4.50, not postpaid. 
BLUE VITRIOL OR SULPHATE 
OF COPPER 
This is a preventative of smut 
in your grain, and when the 
seed goes through a solution of 
vltriolized water the crop pro¬ 
duced therefrom will be clean 
and free from smut. One pound of Blue Vitriol dissolved 
in 20 gallons of water makes a suitable solution for treat¬ 
ing 30 bushels of wheat or barley for smut. 
Fine Crystals—Postpaid: 5 lbs., $1.00; 10 lbs., $1.75. 
Not prepaid: 5 lbs., 75c; 10 lbs., $1.25; 25 lbs., $2.75; 
50 lbs., $4.50; 100 lbs., $8.75. 
Powdered—^Used in making Bordeaux Mixtures and 
Copper Solutions Postpaid: 5 lbs., $1.10; 10 lbs., 
Not prepaid; 5 lbs., 85c; 10 lbs., $1.40; 25 lbs., $3.60; 60 
lbs., .$6.60; 100 lbs., $10.00. 
CUPROCIDE—Celery blight can be successfully controlled 
with the new Red Copper Oxide (Cuprocide). This power¬ 
ful spray material contains 85% Metallic Copper. Use 
only 1 lb. to 50 gallons of water, adding pints 
Lethane Spreader to the mixture. This spray is easy 
to apply, will not clog the spray nozzle and gives com¬ 
plete coverage. Cuprocide is also a fungicide for seed 
treatment for control of damping-off and certain other 
fungus diseases. Bulk, 75c per lb.; 10 lbs., $7.00, post¬ 
paid. 
I^THANE SPREADER—1-gallon cans, $2.00, postpaid. 
NITRAGIN—Alfalfa, all clovers, soy beans, cowpeas, vetch, 
peas and beans should all be Inoculated with this 
inal soil inoculator. Nltragin will produce more vigor ^d 
vitality, increase your yield, and quality and add fer¬ 
tility to the soil. 
NITRAGIN 
mOCULATOR PRICES 
When Ordering, Always 
Specify Name 'cf .Seed 
^ Ika Uqwm« lAocwUtot ^ | 
ALFALFA, all CLOVERS , 
S|za Retail 
Vz bo. ea.S .39 
1 bo. ea._ .50 
IVzba. ea..1.00 
VETCH, AUSTRIAN PEAS, 
CANADIAN PEAS, BEANS 
1/2 bo. ea.S .15 
1 bo. ea- .40 
*l%bo. ea.10 
S bo. ea.1.70 
* 121/2 bo. ea.4.00 
*“IOOIb.”& 12 V 2 bo.$ize, 
packed only for;Veteh8tPeas 
NITRAGIN GARDEN SIZE for Gardeo Peas, Beaos, Sweet 
Peas.Lioia Beans and Lopioes. Eoonih for 4 lbs. seen. 
Retail Price.lOe each. 
LESPEDEZA ^ 
Size Retail 
1 bn. ea..S .30 
2 bu. ea.- .50 
5 bu. ea..1.00 
PEANUTS, SOY BEANS, 
COW PEAS. LIMA BEANS 
1 bn. ea.S .30 
2 bn. ea. .50 
S bn. ea.1.00 
10 bn. ea.UO 
♦25 bn. ea.*-00 
♦25 bn. size packed only ter 
SoyBeans.CowPeas,Peanuts 
NICO-FUME POWDER—(Pressure Fumigator)— Nlco-Fume 
Powder is now supplied in special pressure-fumigation 
tins, in which the powder is burned 
producing finely-divided fumes that quickly *' 
This fumigator saves labor in 
more effective war on insects. Price; Vz lb. cans, 46o, 
1-lb. cans, 75c, not postpaid. 
AGRI-PAX 
Agri-Pax is a pyrethrum 
soap spray that Is used by 
commercial growers, florists 
and home gardeners. It is 
not poisonous. Vegetables 
and fruits sprayed with Ag- 
ri-Pax may be eaten almost immediately after sprayij^ 
without fear. Price, gallon can, $3.00; 6-gaUon can, $12.00, 
not postpaid. 
AGM PAX 
KILLS 
