THE ROCKY MOUNTAIN SEED COMPANY 
— DENVER, COLORADO 
POLYBOR- 
CHLORATE 
A‘20 MULE TEAM’ PRODUCT 
TOXIC TO ALL VEGETATION 
cal when used properly. 
most types of vegetation, 
desired. Effects on adjoining soil or 
areas under 
into treated area. BORASCU 
handled freely for it 
corrode ferrous metals. 
ditions 
Apply Borascu during Fall 
NONSELECTIVE 
FAST-ACTING 
NONFIRE-HAZARDOUS 
ECONOMICAL 
APPLY WET OR DRY 
BORASCU destroys weeds Easy 
and grasses easily, economically! 
Useful About Buildings, Fence Lines, and other areas where 
a bare surface is desirable ... 
BORASCU is a safe, economical, and effective weed and grass-killing chemi- 
Since this chemical is non-Selective, being toxic to 
it should be used only where a bare surface is 
vegetation should not occur if normal 
care is taken to confine the BORASCU treatment solely to those specific 
control and where roots of adjacent vegetation do not extend 
is applied in its delivered form and may be 
and non-combustible; neither will it 
Applied in dry form, BORASCU must be dissolved 
(usually by seasonal rains) and carried into the soil to become effective. Con- 
trol will continue effective until normal leaching takes the BORASCU below 
. ® 
the layer of soil in which root growths usually occur. Under favorable con- ‘ 
it] s; "es Ss , as 7 p 4 ars > . ge yi 
: ing all, Tj * or early Spring months for best re- 
sults. LATE’ SPRING AND SUMMER APPLICATIONS are not recom- 
mended as rains during that period are irregular, and may be in the form 
of heavy thunderstorm which could cause loss of material through wash-offs. WEED eg LLER 
In general, apply BORASCU before plants appear or when they are young 
and tender and more susceptible to chemical action. 
DEHP-ROOTED PERENNIALS 
applications may be made). 
LATH SUMMER ANNUALS: 
TATION: Fall through early spring. 
be related to local conditions as soil, 
tation vary. 
or for noxious weed control 
is non-poisonous 
Winter 
: Apply in fall or winter (early spring 
WINTER ANNUALS: Apply in fall or winter. 
In winter or early spring. MIXHD VEGE- 
These general recommendations should 
climatic conditions, and types of vege- NONPOISONOUS .. . NONCORROSIVE* 
Ke) 
POLYBOR-CHLORATE 
DESTROYS WEEDS FAST! 
Polybor-Chlorate is an economical, general purpose weed and grass killer 
with residual effect. It may remain effective for a year or longer depending 
on the rate of application. This weed killer is not selective in action; its 
usage applies equally to broad and narrow leaf types of weeds and grasses. 
Polybor-Chlorate is easy to use... may be applied as a spray, or applied in 
its dry form with equally effective results ... and it is NOT FIRE 
HAZARDOUS! 
Use Polybor-Chlorate on gravel paths, cinder drives, ditches, clay courts, 
fence rows, and other places where you desire to destroy all vegetation. 
Polybor-Chlorate used prior to paving should prevent vegetation growth from 
occuring later to cause cracks, etc. 
Refineries, lumber yards, petroleum installations, railroads, and utilities, 
are regular users of Polybor-Chlorate for the elimination of the fire hazard 
created by weeds and grasses ... they know it is effective and economical! 
TO KILL ANNUAL WEEDS 
Add % lb. of Polybor-Chlorate to 1 gallon of water and apply to 40 or 50 
square feet as a contact spray. Thoroughly wet all parts of the plants, par- 
ticularly the growing tips. A sprinkling can or hand sprayer may be used on 
small areas. On large areas a power sprayer with mechanical agitation should 
be used; add 1 lb. of Polybor-Chlorate to 1 gal. of water and apply at the 
rate of 1 gal. to 80 or 100 square feet. 
For best results and most economical use, apply early when vegetation is 
young and tender. 
If dry application is preferable, use % lb. to every 385 square feet and ,if 
season is dry, wet down area lightly with water after applying. 
TO KILL PERENNIAL WEEDS 
Perennials are best treated when nearing maturity or dormant stage; spring 
applications may be made also. Summer applications are not normally rec- 
ommended... rainfall is essential for best results on deep-rooted weeds. For 
SPRAY application: add 1 lb. to a gallon of water and spray 1 to 1% gallons 
per 50 square feet on average vegetatoin. 
ACTIVE INGREDIENTS 
Sodium Pentaborate Na.B O16, 10HsO 22222. 59% 
30rax INI EVO PS THON SES Oy cca ee ee 1544 % 
Sodium Chlorate IN AIG OR piesa ie eee ems he Oe 
Price: 25 Ib. drums, $6.25; 100: Ib. bags, $12.50, f.0.b. Denver. 
results may last for two years or longel 
A 20 MULE TEAM" PRODUCT 
* NONCOMBUSTIBLE 
PRICE—100 Ib. bags, $5.00, f.0.b. Denver Kacrodetnetale 
