ing, the concentrated low volume spraying is replacing 
high volume spraying. The results (in regard to actual 
weed control) seem to be the same with either method. 
We favor the low volume spraying of 5 to 20 gallons 
per acre because it can be done more cheaply and with 
greater ease. The farmer using low volume spraying 
equipment must be accurate in the amount of material 
applied per acre and he should follow the manufac- 
turer’s directions carefully as to nozzle spacing, distance 
of boom from ground, pressure, and forward speed. 
We have made a survey of the equipment used for 
weed spraying and find that our WEEDONE CON- 
CENTRATE 48 or WEEDAR 64 can be used successfully 
in any type of machine which will deliver a consistent 
amount of solution per acre. 
Scarcity of water and roughness of terrain are fac- 
tors contributing to the introduction of dusting with 
2,4-D. We offer WEEDUST, a 5% acid equivalent ethyl 
ester dust which has proved itself in airplane, heli- 
copter, and ground dusting méchines. The factor of 
drift to susceptible crops must be considered in using 
this material. 
The application of WEEDONE CONCENTRATE 48 
or WEEDAR 64 by airplane gives the same high stand- 
ard of performance as does ground spraying. WEEDAR 
64 is compatible only with water, but WEEDONE CON- 
CENTRATE 48 is miscible in cyclic oils such as Stand- 
ard S21 or Shell E407R, as well as in water. 
In knapsack spraying for spot treating, we suggest 
that WEEDONE CONCENTRATE 48 and WEEDAR 64 
be used at a rate of %4 pint to 5 gallons of water. 
DIRECTIONS FOR THE USE OF WEEDONE 
CONCENTRATE 48 AND WEEDAR 64 
The amounts of material are expressed in pints 
applied per acre and cover a range of effectiveness 
determined by the growth stage, rate of growth, and the 
susceptibility of the weeds present. Use minimum 
amounts of WEEDONE CONCENTRATE 48 and 
WEEDAR 64 on susceptible weeds, when plants are 
growing rapidly. Use maximum amounts on resistant 
weeds when conditions are unfavorable. The effective- 
ness of herbicides depends on so many factors which 
may vary in different sections of the country that this 
bulletin does not attempt to replace your local or state 
agricultural authority’s recommendations. 
SELECTIVE WEED CONTROL 
(a) For the control of troublesome weeds in pastures, 
golf courses, cemeteries, parks, and other large turf 
areas, we suggest using 2 to 4 pints of WEEDONE 
CONCENTRATE 48 or WEEDAR 64 per acre, de- 
pending on the susceptibility of the weeds. (Common 
susceptible weeds are dandelion, broad- and narrow- 
leaved plantain, ragweed, cocklebur, garlic and heal- 
all. Resistant varieties are field bindweed, thistles, 
pigweed, burdock, nettles and similar pests. Spring 
