

ma d 
THE ROCKY MOUNTAIN SEED COMPANY 

DENVER, COLORADO 
32 


Until now, means of weed control have been limited to culti- 
vating and mowing, or to treatment with caustic chemicals that 
killed the foliage or poisoned the soil. These methods have been 
used because they were the only ones available, yet the total 
effect on the weed crop has been small. Today, 2, 4-D Weed 
Killers exist as a new weapon of great effectiveness. It is 
economically practical in all respects. It kills the whole plant, is 
easy to apply and, perhaps most important of all, weeds are 
‘killed while grass continues to grow. Soil is not affected at 
contentrations recommended. 2, 4-D Weed Killers will kill or 
damage a wide variety of vegetables, flowers, shrubbery and 
trees. Care in applying only to unwanted plants is essential. 
Most Legumes are damaged or killed by 2, 4-D. Grasses have 
a natural immunity and are harmed little, if any, by dosages 
° of 2, 4-D that are fatal to broad-leaved weeds. Cereals, corn, 
' wheat and oats are not hurt by 2, 4-D, when used according to 
Na 
Tage 




' the spray must be kept from the leaves of 
“ killer! Applied to the leaves, EndoWeed pen- 
Ve 
; 4 
iv 
Bo 
not ‘harm ordinary grass nor affect the soil. 
directions. 
_ WEEDONE 
FRANE MARK 
‘This is the New Weed Killer you’ve 
read about in Better Homes & Gardens, 
Country Gentleman, Time, Reader’s Di- 
gest and practically every farm and gar- 
den magazine . . Weedone is an oil 
liquid mixable with water, and sprayed 
on the weed leaves. Tested more than 
three years, it is still the most effective 
2, 4-D formula. Most weed-killers kill the 
top plant only, but Weedone goes into the 
leaves and down into the roots, killing 
the whole plant. Since Weedone kills not 
only weeds but many desirable plants, 
the desirable plants, such as flowers and 
vegetables. Use one part Weedone in 100 
parts water, applying a gallon of spray 
to each 200 square feet of weeds. 
6-oz. Bottle (makes 5 gal. spray)... 75¢ each 
_1-qt. Bottle (makes 25 gal. spray)................. $2.50 each 
1-gal. Bottle (makes 100 gal. spray)............ $7.50 each 
5-gal. Can (makes 500 gal. spray)... $5.50 per gal. 
ete ee UI tee ee 4.70 per gal. 
F.0.B. DENVER 
~ EndoWeed 
EndoWeed, new, improved selective weed 
etrates entire plant, killing roots and all in 
a week or so. Kills dandelions, chick-weed, 
plantain and over 50 other weeds, yet will 
8 ounces treats 2000 sq. ft. of lawn. Stop in 

for EndoWeed! (1% pt. cans $1.00) (quarts 
_ $2.75) (gallons $8.50). Postpaid. 

2-4-D WEED KILLERS 
(2-4-Dichlorophenoxyacetic Acid Weed Killer) 
TUFOR (27% 2, 4-Dichlorophenoxyacetic Acid)—Selective Weed 
Killer for Lawns. Manufactured by the United States Rubber 
Co., Tufor is a selective herbicide (Weed Killer) which kills 
broad leaved plants, but not narrow leaved plants such as 
cereals, grains and grasses. Tufor is a completely water- 
soluble derivative of 2, 4-dichlorophenoxyacetie acid, which 
means that the material will not settle out, but stays in solu- 
tion. Use 1% quarts per 100 gallons of water; 1% pints to 50 
gallons of water, or 4 teaspoons to one gallon of water. May 
be applied as a spray or with a sprinkling can, provided care 
is used to secure a complete un‘form coverage. Price (4 oz. 
$1.00) (Fint $2.00) (@uart $3.50) (Gallon $11.00), f.o.b. Denver. 
DOW WEED KILLERS 
NOTE THESE SIMPLE PRECAUTIONS 
Use care in applying 2-4 Dow only to undesirable plants. It 
spares narrow leaved grasses, but it will kill or damage clover, 
flowers, vegetables, shrubbery and evergreens. Cloth or canvas 
sereens can be erected around valuable ornamental species to 
protect them from spray drift. 
2-4 Dow Weed Killer is not recommended for use on bent 
grass lawns. 
Use a separate sprayer for 2-4 Dow, if possible, if spray 
equipment is to be used for any other purpose, it is essential 
that it be thoroughly cleaned immediately after use with 2-4 
Dow. A suggested method is as follows: 
Rinse thoroughly with water. Then fill with hot water, add 
2 teaspoonfuls household ammonia per quart of water (equiva- 
lent to 1 quart in 25 gallons of water) and mix. Spray out small 
amount of solution and let the remainder stand in the equip- 
ment overnight. Doubie the soaking period when using cold 
water. Drain, and rinse several times, being sure to spray a 
small quantity through nozzles each time. 
2-4 Dow Weed Killer is available as a powder or as a liquid. 
The choice is a matter of convenience to the user. Both prod- 
ucts are used mixed with water to form a solution of the recom- 
mended strength. 
DOW’S 2, 4-D WEED KILLER—Powdered Form—{70% 2, 
4-Dichlorophenoxyacetie Acid) The standard recommendation 
is 14% pounds of 2, 4 Dow Weed Killer Powdered in 100 gallons 
of water, applied at the rate of approximately 200 gallons per 
acre, or enough to thoroughly wet the foliage without causing 
appreciable runoff. On turf, 125 to 150 gallons per acre is 
usually sufficient. Price: (10-Ib. Drums $15.00 each) (50-Ib. 
Drums $70.00 each), f.o.b.Denver. 
DOW’S 2, 4-D WEED KILLER—Liquid Form—(20% 2, 4-Di- 
chlorophenoxyacetic Acid). The standard recommendation 
is two quarts of 2, 4-Dow Liquid Weed Killer in 100 gallons of 
water, applied at the rate of approximately 200 gallons per 
acre. Price (Pints $2.10) (Quarts $3.85) (Gallons $7.08) (5-Gallon 
Drums $6.52 per gallon). 
DOW CONTACT WEED KILLER—Is a dinitro material that 
kills top growth of vegetation anywhere—around fruit treés, 
in waste areas—unused parts of the garden, killing weeds 
present before garden seed comes up, weeds on early plowed 
ground, fence rows, and insect breeding areas around planted 
fields. Dow Contact Weed Killer does not, in general, kill the 
roots. Use 3 gallons to 100 gallons of water. Price: (10-Gallon 
Drums, $2.30 per gallon). 
DOW SELECTIVE WEED KILLER—Is also a dinitro com- 
pound. Dow Selective Weed Killer is used to kill, or effective- 
ly check the growth of many anhual weeds growing in flax, 
in peas, and in grain—particularly when grain is interplanted 
with legumes. Use 3 pints to 100 gallons of water. Price: (10- 
97% 
Gallon Drums, $2.75 per gallon). 
