6
Application Rates
Medium and Fine Soils
1
.5 - 4% organic matter Rate
Central Region States
No pH restriction* 1 oz/acre
composite soil pH of 7 or less 1.25 - 3 oz/acre
Southern Region States
No pH restriction 1 - 1.5 oz/acre
composite soil pH of 7 or less greater than 1.5
up to 3 oz/acre
* In Michigan, New York and Wisconsin, do not apply the 1
oz/acre rate to soils exceeding pH 7.6. In all other states, the soil
pH is unrestricted for 1 oz/acre rate.
Weeds Controlled
Burndown Control of existing winter and summer
annual weeds
CLASSIC® applications in the fall through early spring will
provide burndown control of certain broadleaf weeds no
greater than 3 inches in height. To obtain burndown of the
weed species listed below:
- addition of crop oil concentrate at 1% v/v (1 gallon per
100 gallons of final spray volume) is required.
- use a minimum of 20 gallons per acre with spray nozzles
that provide thorough spray coverage of the weeds.
- 2,4-D LVE may be added for enhanced burndown control.
* Addition of 1 pt/acre 2,4-D LVE is required for the 1
oz/acre rate and recommended for all rates.
**
Addition of 1 pt/acre 2,4-D LVE required.
Chickweed Burndown
- For best results: add 0.08 – 0.33 oz DuPont™
EXPRESS® XP herbicide to CLASSIC® for control of
up to 6 inch common chickweed. For other weeds
EXPRESS® XP controls, see the EXPRESS® XP label.
EXPRESS® XP must be added at least 45 days prior to
soybean planting.
- Alternatively, “Sencor” or glyphosate-containing products
registered for soybeans may be used for chickweed
burndown.
To burndown annual grasses and broadleaf weeds listed
a
bove when they exceed the recommended heights,
CLASSIC® may be tank mixed with one or more of such
products as: “Gramoxone” Extra, 2,4-D LVE, “Sencor”, or
glyphosate-containing products registered for soybeans.
When tankmixing with glyphosate-containing products,
replace the crop oil concentrate with nonionic surfactant at
0.25% v/v (1 quart per 100 gallons final spray volume) and
follow the manufacturer’s instructions for ammonium
s
ulfate addition. To select the proper burndown product,
identify the weeds to be controlled and consult the product
labels to determine which product is needed.
Preemergence or Residual Control
- Fall through early spring applications of 1.25 – 3 oz/acre
CLASSIC® will provide acceptable preemergence
control or partial control (suppression) of the following
weeds through normal planting dates.
Control Suppression
Cocklebur annual grasses*
Lambsquarters (foxtails, barnyardgrass,
Marestail crabgrass, panicum)
Pigweeds, redroot, smooth Chickweed, common
Purselane Speedwell Jimsonweed
Ragweed, common Morningglory, annual*
Smartweeds, annual Nutsedge, yellow*
Velvetleaf Prickly Sida (teaweed)*
Ragweed, giant*
- Fall through early spring applications of 1 oz/acre
CLASSIC® will provide limited residual control of the
above-listed weeds to contribute to a clean seed at
planting.
* With 1 oz/acre applications of CLASSIC® - heavy weed
pressure, delayed planting, or adverse environmental
conditions may require additional burndown control
measures at planting. For enhanced residual control, such
products like 2-4 oz/acre “Sencor” may be tank mixed
with 1 oz/acre CLASSIC®.
Planned Sequential Programs
CLASSIC® applied under the expanded application timing
will not provide adequate season-long preemergence control
of annual grasses and broadleaf weeds.
- for season-long control in glyphosate-tolerant soybeans,
follow CLASSIC® with an in-season glyphosate-
containing herbicide.
-
for season-long control in non-GMO soybeans, follow
CLASSIC
®
with sequential programs based on the
targeted weeds.
To insure maximal rotation flexibility when considering a
sequential program of CLASSIC® followed by CLASSIC®
or DuPont™ SYNCHRONY® XP, carefully consider: the
soil pH, the recommendations below, the rotational
information in this section, and the Rotational Crop
Guidelines in this label.
Applications of 1 oz/acre CLASSIC® (Central and
Southern States) to soils with pH greater than 7: Do not
apply additional chlorimuron-ethyl-containing herbicides
(CLASSIC®, SYNCHRONY® XP) except in the states of
AL, AR, GA, KY, LA, MO bootheel, MS, NC, OK, SC,
TN,TX, where up to 0.5 oz/acre CLASSIC® may be
applied.
Bittercress, small-flowered
Bushy wallflower
Buttercup, smallflower
Butterweed
Dandelion
Deadnettle, purple, red
Garlic, wild*
Henbits
Lambsquarters**
Lettuce, prickly
Marestail*
Mustard wild
Pennycress
Pepperweed
Pigweed
Ragweed, common
Ragweed, giant
Shepherdspurse
Smartweed, annual
Speedwell, field, purselane
Sunflower
Tansy mustard
Thistle, canadian (above
ground portion)
Velvetleaf
Whitlowgrass
Yellow rocket
For season-long control of all grass and broadleaf
weeds following 1 – 3 oz/acre applications of
DuPont
™ CLASSIC®, a planned sequential program
is required. Use higher rates of CLASSIC® where
longer residual control is desired.
