4
SOYBEAN TANK MIX APPLICATIONS
DuPont™ CLASSIC® and glyphosate tankmixes
A
tank mix of CLASSIC® at 0.25 to 0.33 oz/acre plus
g
lyphosate (equivalent to 1 qt of a 4 lb/gallon formulation)
will control the weeds listed in the table below. For best
control of morningglories and dandelion, the higher rate of
CLASSIC® is recommended.
- When tank mixing CLASSIC® + glyphosate herbicides, it
is recommended to add 4.25 -17 lb ammonium sulfate per
100 gallons of spray mixture.
- The addition of surfactant at 0.25% v/v (1 qt per 100
gallons of spray) to some CLASSIC® + glyphosate tank
mixes may improve weed control. Since some glyphosate
products differ in their adjuvant contents, some glyphosate
products, such as "Glyphomax" or "Roundup Original"
allow for the addition of surfactants.
- See the glyphosate manufacturer's label for specific
ammonium sulfate and surfactant recommendation.
Maximum weed height in inches
Weeds Controlled 0.25 - 0.33 oz/ac CLASSIC® + glyphosate*
Barnyardgrass 6
Cocklebur 8
Corn, volunteer 20
Crabgrass species 10
Dandelion 4
Foxtail species 10
Hemp sesbania 4
Jimsonweed 10
Ladysthumb 8
Lambsquarters 6
Morningglory, entireleaf, ivyleaf, 4
pitted, tall 4
Nightshade, eastern black 5
Nutsedge, yellow 6
Panicum, fall, texas 10
Pigweed, redroot, rough 12
Pigweeds, other 8
Prickly sida 4
Ragweed, common, giant 8
Sicklepod 4
Signalgrass, broadleaf 4
Smartweed, pennsylvania 8
Sunflower
8
Velvetleaf
4
Waterhemp species
4
*equivalent of 1 qt/ac of 4 lb/gal glyphosate
A tank mix of
CLASSIC
®
at 0.5 oz/ac plus glyphosate
(equivalent to 1 qt of a 4 lb/gallon formulation) will suppress
tropical spiderwort that is no larger than 2 inches in size.
CLASSIC® and “Flexstar”, “Reflex”, “Ultra
Blazer”, “Cobra” or “Phoenix” Herbicides
0.75 – 1.25 pt/acre “Flexstar”
0.75 – 1.5 pt/acre “Reflex”
0.5 – 1.5 pt/acre “Ultra Blazer”
4 – 6 fluid oz/acre “Cobra”, or
8 fluid oz/acre “Phoenix”
Refer to the “Flexstar”, “Reflex”, “Ultra Blazer” “Cobra” and
“Phoenix” labels for the appropriate rate based on the weed
sizes to be controlled. Nonionic surfactant or crop oil
concentrate must be added.
For best results with CLASSIC® plus “Reflex” or
“
Flexstar”
,
use a methylated seed oil-based or petroleum oil-
based crop oil concentrate at 8 pt per 100 gallon spray
solution (1% v/v). Alternately, use nonionic surfactant at 2 pt
per 100 gallon spray solution (.25%v/v).
For best results with CLASSIC® plus “Ultra Blazer”, use
nonionic surfactant at 1-2 pt per 100 gallon spray solution.
Use of crop oil concentrate is not recommended, as severe
injury may occur.
For best results with CLASSIC® plus “Cobra”, use crop
oil concentrate at 4 pt per 100 gallon spray solution (0.5%
v/v).
For best results with CLASSIC® plus “Phoenix”, use
nonionic surfactant at 2 pt per 100 gallon spray solution.
Use the higher “Cobra” rate when prickly sida or hemp
sesbania are heavy or if prickly sida and hemp sesbania
approach the maximum size of 1" or 4", respectively. Include
a nonionic surfactant at 1-2 pt per 100 gallons of spray
solution (.125-.25 %v/v). Do not use crop oil concentrate
when tank mixing CLASSIC® and “Cobra” at these rates.
Precautions for tank mixes of CLASSIC®, or CLASSIC® +
DuPont™ HARMONY® GT XP plus “Flexstar”, “Reflex”,
“Ultra Blazer”, “Cobra” , or “Phoenix”
Tank mix applications of CLASSIC® or CLASSIC® +
HARMONY® GT XP plus “Flexstar”, “Reflex”, “Ultra
Blazer”, “Cobra” or “Phoenix” may not control weeds listed
on the CLASSIC® or CLASSIC® + HARMONY® GT XP
label as completely as applications of CLASSIC® or
CLASSIC® + HARMONY® GT XP alone.
CLASSIC® and Postemergence Grass
Herbicides
CLASSIC® and CLASSIC® tank mixes may be tank mixed
with postemergence grass herbicides such as DuPont™
ASSURE® II herbicide. For best results, apply CLASSIC® 7
days before or 1 day after the grass herbicide. Refer to the
grass herbicide label for precautions and specific use
information.
For control of Prickly Sida and Hemp Sesbania, tank mix
0.5 oz CLASSIC® with 8-12.5 fl. oz “Cobra”.
For control of small waterhemp, eastern black nightshade
and improved common ragweed control, CLASSIC® may
be tank mixed with:
