3
When applied as directed, DuPont™ CLASSIC® will
s
uppress the following weeds:
M
aximum
HEIGHT (Inches)
1
/2 oz 2/3 oz 3/4 oz
W
eeds /A /A /A
Burcucumber* – 3 6
C
anada Thistle – 3 4
P
urple Nutsedge 3 4 5
S
mooth Pigweed 2 3 4
Tropical Spiderwort 2 2 2
* See Split Applications section.
Split Applications
A second application of CLASSIC® may be made 2–3 weeks
after the initial application to control weeds with multiple
germination flushes or suppressed weeds such as
burcucumber, cocklebur, cowpea, giant ragweed,
morningglory, pigweed, sicklepod, and velvetleaf. Do not
make more than 2 applications of CLASSIC
® in a single
season.
Spray Adjuvants
Nonionic Surfactant
• Surfactant products must contain at least 60% nonionic
surfactant with a hydrophilic/lipophilic balance (HLB)
greater than 12.
Crop Oil Concentrate
For improved weed control under hot, dry conditions, or for
control of tough weeds like Giant Ragweed, a crop oil
concentrate may be used in place of a nonionic surfactant.
•
Use a good-quality, petroleum-based or methylated seed
oil-based crop oil concentrate with at least
15% surfactant emulsifiers and 80% oil.
• Crop oil concentrate may increase the potential for crop
injury in soybeans.
Ammonium Nitr
o
g
en Fertilizer
In addition to a nonionic surfactant or crop oil concentrate, an
ammonium nitrogen fertilizer is required to control velvetleaf.
•
Use 2 qt/acre of a high-quality urea ammonium nitrate
(UAN), such as 28% N or 32% N, or 2 lb/acre of a spray-
grade ammonium sulfate (AMS).
• Use 4 qt/acre UAN or 4 lb/acre AMS under arid conditions.
• Always use the lower rates of fertilizer with spray volumes
of less than 15 gallons per acre.
Special Adjuvant Types
- Combination adjuvant products may be used at doses that
provide the required amount of NIS, COC, MSO and/or
ammonium nitrogen fertilizer. Consult product literature for
use rates and restrictions.
-
In addition to the adjuvants specified above, other adjuvant
types may be used if they provide the same functionality
and have been evaluated and approved by DuPont Product
Management.
Tank Mixes
Other than the exceptions noted, and in addition to the tank
mix partners and rates indicated in this label, CLASSIC®
may be tank mixed or followed with sequential applications
of other products registered for use in soybeans. CLASSIC®
may be applied in tank mix combinations with full or reduced
rates of other products provided:
• The tank mix product is labeled for the same timing, method
of application, adjuvants, and use restrictions as
CLASSIC®.
• The tank mix is not specifically prohibited on the label of
the tank mix product.
• The tank mix combination is compatible as determined by a
“jar test” described in the TANK MIX COMPATIBILITY
TESTING section below.
Weed control and crop safety resulting from the use of tank
mixtures not specifically noted on this label, or in separately
published DuPont recommendations, are the responsibility of
the user.
Tank Mix Compatability Testing
Perform a jar test prior to tank mixing to ensure compatibility
of CLASSIC® and other pesticides. Use a clear glass quart jar
with lid and mix the tank mix ingredients in their relative
proportions. Invert the jar containing the mixture several
times and observe the mixture for approximately 1/2 hour. If
the mixture balls-up, forms flakes, sludges, gels, oily film or
layers, or other precipitates, it is not compatible.
So
ybean Precautions
•
Temporary leaf yellowing and/or retardation of soybean
growth may occur following application of CLASSIC®.
These effects will generally be most evident 5-7 days after
application to soybeans under stress. Under favorable
soybean growing conditions, the crop will quickly recover.
• Do not graze treated fields or harvest for forage or hay.
•
CLASSIC®
should not be used on soils with a history
of nutrient deficiency (such as iron chlorosis). Crop injury
may occur.
.• Do not apply to land that has been or will be treated with
chlorsulfuron and/or metsulfuron methyl containing
herbicides in the states of Kansas, Nebraska, or South
Dakota without carefully observing the rotational crop
intervals for those products.
• Do not tank mix CLASSIC® with “Python” WDG due
to risk of crop injury.
• Do not tank mix CLASSIC® with organophosphate
insecticides or apply CLASSIC® within 14 days before
or after an application of an organophosphate
insecticide, as severe crop injury may occur.
• Apply crop oil concentrate at the rate of 8 pt per 100 gal
of spray solution (1.0% v/v).
• Add a nonionic surfactant at the rate of 2 pt per 100 gal
of spray solution (0.25% v/v).
Applications of CLASSIC® must include a crop oil
concentrate or nonionic surfactant except as specified in
this labeling. An ammonium nitrogen fertilizer may also
be required. If another herbicide is tank mixed with
CLASSIC®, select adjuvants authorized for use with both
products. Adjuvants must contain only EPA-exempt
ingredients (40 CFR 1001).
