THE ROCKY MOUNTAIN SEED COMPANY — DENVER, COLORADO| nee, 

WETTABLE SULPHUR 
MAGNETIC SPRAY (Wettable Sulphur)—98.5% pure. A spe- 
cially processed sulphur possessing superior adhesive prop- 
erties, and containing not more than 12144% wetting agents. 
Hasily dispersed in spray tank. Use for spraying fruit trees, 
berries, flowers and ornamentals. (100 Ibs. $6.00), F.O.B. 
Denver. 
CROWN BRAND (Wettable Sulphur)—95% pure. A processed 
sulphur of high adhesive properties assuring adherence to 
foliage. It wets quickly and easily even in hard water, re- 
maining in suspension for an unusually long time. Recom- 
mended for use on potatoes as a wet spray. Also excellent to 
build up weak Lime Sulphur sprays; use 4 lbs. to replace 
each gallon of 382 degree Baume Lime Sulphur solution 
left out. (100 Ibs. $5.00), F.O0.B. Denver. 
DUSTING SULPHUR—Inmert matter, 7% passing a 325 mesh 
screen. Its free-flowing properties make it ideal for use in 
combination with Rotenone bearing dusts, Pyrethrum, Arse- 
nate of Lead, Calcium Arsenate, Nicotine Sulphate, ete. (100 
Ibs. $4.50), F.0.B. Denver. 
SPECIAL MIXTURES OF 
INSECTICIDES 

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PYROCIDE DUSTS 
No. 5-A DUST—Pyrocide Dust combined with Sulphur is rec- 
ommended for the control of psyllids, flea beetles, aphids, 
leaf hoppers, spider mites, striped and spotted cucumber 
beetles, thrips, lice, blister beetles, mildew and rust. It is not 
recommended for greenhouse use. It should also be used with 
caution on raspberries and grapes since the sulphur in this 
mixture has a tendency to injure foliage and berries at high 
temperatures. When used on tomatoes and raspberries can- 
not be used after the fruit starts setting because of the sul- 
phur residue on the fruit. (1 Ib. 40ce) (5 Ibs. $1.35) (20 Ibs. $3.50), 
Postpaid; (50 Ibs. $6.50), F.O0.B. Denver. 
No. 10 DUST—Is recommended as a general insecticide, in- 
cluding the control of web worm, cucumber beetle, bean 
beetle, tarnish plant bug, leaf tier, grape leaf hopper, thrips, 
squash bug, harlequin bug, Colorado potato beetle And the 
asparagus beetle. Can be used on all types of plants under 
all conditions. (1 Ib. 45e) (5 Ibs. $1.75) (20 Ibs. $5.00), Postpaid; 
(50 Ib. bag $9.50), F.0.B. Denver. 
No. 10-A DUST—Pyrocide Dust combined with Sulphur for the 
control of all types of pests that are found on plant as well 
as fungus diseases. It is especially effective on roses, del- 
phinium, larkspur and as a control of spider mites and mil- 
dew on all ornamentals, consequently is recommended on 
an all-around home garden dust. It is not recommended for 
use in greenhouses. (1 Ib. 50c¢) (5 Ibs. $1.60) (20 Ibs. $6.00), Post- 
paid; (50 Ib. $10.00), F.O.B. Denver. 
ROCKY MOUNTAIN HI-ALTITUDE APHIS DUST—A com- 
bination of Free Nicotine. and B-71 for the control of aphis 
on cabbage, peas, cauliflower and broccoli. (1 Ib. 40c) (5 Ibs. 
$1.25) (20 Ibs. $4.50), Postpaid; (50 Ib. bags $8.00), F.0.B. Den- 
ver. 
ROCKY MOUNTAIN HI-ALTITUDE APHIS DUST WITH 
SULPHUR—A combination of Free Nicotine, B-71 and Sul- 
phur for aphis control. (1 Ib. 45c) (5 Ibs. $1.50) (20 Ibs. $4.75), 
Postpaid; (50 Ib. bag $8.50), F.0.B. Denver. 
PYRENONE DUST No. 20 (Contains Piperonyl Cyclohexenone) 
A new organic contact insecticide. Gives excellent control of 
many insects for which Pyrethrum and Rotenone have been 
used. Tests prove it is effective against Mexican hean beetle. 
cucumber beetles, cabbage looper, cabbage worm and leaf 
hoppers. Leaves no poisonous residue. (1 Ib. 40c) (5 Ibs. $1.25) 
(20 Ibs. $4.50), Postpaid; (50 Ib. bags $8.00), F.0.B. Denver. 
SABADILLA DUST No. 20—This dust is twice as strong as 
the No. 10 dust and is used for the control of squash bugs, 
and hard to kill insects. (1 Ib. 65e) (5 Ibs. $2.00) (20 Ibs. $7.50), 
Postpaid; (50 Ib. bag $14.00), F.0.B. Denver. 
75% ROTENONE DUST—Controls insects on vegetable crops, 
leaves no poison residue. Standardized at %,% Rotenone con- 
tent. For asparagus beetle, bean leaf beetle, leaf hopper, 
Mexican bean beetle, blister beetle, flea beetle, web worm, 
cabbage worm, plant lice, thrips, melon worm, striped and 
spotted cucumber beetle, rose slug, tomato horn worm and 
other insects. (1 Ib. 40c) (5 Ibs. $1.25) (20 Ibs. $4.50), Postpaid; 
(50 lb. bag $8.00), F.0.B. Denver. 
ROCKY MOUNTAIN R-60 DUST—A combination of Lethane, 
Rotenone and Sulphur. Recommended for the control of 
many sucking and chewing types of truck crop insects such 
as pea aphids (and other plant lice), cabbage loopers, leaf 
hoppers, pea weevils and Mexican bean beetles. (1 Ib. 40c) (5 
Ibs. 85c) (20 Ibs. $3.00), Postpaid; (50 Ib. bag $6.00), F.O.B. 
Denver. 
ROCKY MOUNTAIN HOPPER DUST No. 5 (Contains Chlor- 
dane)—For the control of grasshoppers, alfalfa weevil, lygus 
bug and other insects. Apply at the rate of 20 Ibs. per acre. 
For the control of grasshoppers, dust on weeds around fence 
lines, shrubs and flowers in the late evening or early morn- 
ing while hoppers are quiet will give best control, contacting 
as Many as possible with the dust. When used on fields of 
alfalfa there is a noted increase in both seed and hay. (Ib. 45ce) 
(5 Ibs. $1.50) (20 Ibs. $4.00), Postpaid; (50 Ib. bags $7.00), F.0.B. 
Denver. R 
5% DDT DUST—Effective in controlling a large number of 
different species of insects pests such as onion and gladiolus 
thrips, on potatoes—potato beetles, psyllid, flea beetles, leaf 
hoppers; lygus bugs on alfalfa and sugar beets grown for 
seed. Can also be used on all types of flowering plants, 
shrubs and trees. (1 Ib. 40c) (5 Ibs. $1.75) (20 Ibs. $3.00), Post- 
paid; (50 Ib. bags $5.00), F.0.B. Denver. 
10% DDT DUST—To be used when the 5% dust does not give 
good control, or hard to kill insects. (1 Ib. 50c) (5 Ibs. $2.25) 
(20 Ibs. $4.00), Postpaid; (50 Ib. bag $6.50), F.0.B. Denver. 
ROCKY MOUNTAIN 10-10 DUST—Manufactured for green- 
house use for hard-to-kill insects that cannot be controlled 
with the use of a straight D.D.T. Dust or Pyrocide dust we 
have combined 10% Dry Pyrocide and 10% DDT. Has been 
used on white fly and chrysanthemum midge the past season 
with excellent control. (20 Ibs. $9.50), Postpaid; (50 Ib. bag 
$17.50), F.O.B. Denver. 
CRYOLITE CUCUMBER AND MELON DUST—A very effece- 
tive control against blight and striped cucumber beetle, on 
cucumbers and melons. Use at the rate of 20 pounds per 
acre. (1 Ib. 35e) (5 Ibs. $1.25) (20 Ibs. $3.50), Postpaid; (50 Ib. bag 
$7.50), F.0.B. Denver. 
SULPHUR-COPPER DUST—A combination of Sulphur and 
Copper to control blight, mildew and rust on peas, potatoes, 
tomatoes, celery, as well as shrubs and flowering plants. (1 Ib. 
40c) (5 Ibs. $1.50) (20 Ibs. $3.50), Postpaid; (50 Ib. bag $5.00), 
F.0.B. Denver. 
COPPER CELERY DUST—Recommended for the control of 
early and late fall blight or rust of celery. Dust plants at 
first sign of blight and dust at intervals of every ten days in 
order to keep plants thoroughly covered. Copper has a 
stimulating effect on the growth of the plants resulting in 
increased yields and higher quality produce. (1 lb. 35ce) (5 Ibs. 
$1.25) (20 Ibs. $3.00), Postpaid; (50 Ib. bag $4.50), F.0.B. Denver. 
