APPLICATION INFORMATION
Ground Application
(See Also Spray Drift Management)
Broadcast Application
Band Application
• Because band applicators spray a narrower area than
broadcast applicators, use proportionately less spray
solution for band applications.
• Carefully calibrate the band
applicator to not exceed the labeled rate.
• Flat fan nozzles are preferred.
• Carefully follow the nozzle manufacturer’s instructions
for nozzle orientation, distance of the nozzles from the
crop and weeds, spray volumes, calibration, and spray
pressure for band applications.
• For additional information on row banders, see
DuPont bulletin, “Application Accuracy - Row Banders.”
Aerial Application (See Also Spra
y Drift)
• Use nozzle types and arrangements that will provide
optimum spray distribution and maximum coverage at 3–5
gal per acre.
• Use a minimum of 3 gal water per acre. Under heavy weed
pressure or dense crop foliage, increase the minimum spray
volume to 5 gal per acre.
• Do not apply during a temperature inversion, when winds
are gusty, or when other conditions could produce poor
coverage and/or off-target spray movement.
ENVIRONMENTAL CONDITIONS AND
BIOLOGICAL ACTIVITY
DuPont
™
CLASSIC
®
rapidly inhibits the growth of
susceptible weeds. Leaves of susceptible plants yellow 3-5
days after application, followed, in controlled plants, by the
death of the growing point. CLASSIC
®
will provide complete
control of susceptible weeds in 7–21 days. Suppressed plants
may remain green but will be stunted and noncompetitive.
CLASSIC® will provide best results when applied to young,
actively growing weeds. Degree of control depends on: rate
used; weed spectrum; weed size (if weeds are large, use
higher rates and spray volume); growing conditions at and
f
ollowing treatment; soil moisture; precipitation; and spray
adjuvants. Treating weeds under stress or large weeds may
result in only partial control. Stress may be caused by:
•
abnormal weather (hot or cold)
•
mechanical injury from cultivation
• drought
• water-saturated soil
• disease
• insect injury
• prior herbicide injury
Stress affects some weeds, such as pigweed, more than others.
Delay application until stress passes and weeds start to grow
again.
Severe stress (drought, disease, insect damage, or nutrient
deficiency such as iron chlorosis) following application may
also result in crop injury and/or poor weed control.
Do not apply CLASSIC® if rain is expected within 1 hour or
weed control may decrease.
ROTATIONAL CROP GUIDELINES
Crop rotation intervals noted in the table below are based on
crops grown under favorable growing conditions. Crops
grown under unfavorable environmental conditions, such as
drought, nutrient deficiency, high salts, disease and insect
pressure may demonstrate reduced tolerance to crop
protection chemicals. When deciding on a particular crop to
replant in your fields, carefully consider your particular soil
and other field conditions.
• Rotation or crop intervals must be followed.
• When DuPont
™ CLASSIC® is applied in sequence with
DuPont™ CANOPY® or DuPont™ CANOPY XL®,
follow the crop rotational guidelines listed on the
CANOPY® and CANOPY XL® labels.
Northern Region: The states of Iowa (west of State Route
63 and north of I-80), Minnesota, Nebraska (fields north of
route 30 and west of Route 281), New York (fields north of
Interstate 90), South Dakota and Wisconsin (fields north of
Interstate 90 between Lacrosse and Madison and fields
north of Interstate 94 between Madison and Milwaukee).
Central Region: The states of Delaware, Illinois, Indiana,
Iowa (east of State Route 63 or south of I-80), Kansas,
Maryland, Michigan, Missouri (except the Bootheel),
Nebraska (fields south of Route 30 and east of Route 281),
New Jersey, New York (fields south of Interstate 90), Ohio,
Pennsylvania , Virginia, West Virginia and Wisconsin
(fields south of Interstate 90 between Lacrosse and Madison
and fields south of Interstate 94 between Madison and
Milwaukee).
Southern Region: The states of Alabama (except the
“Black Belt” where soil pH must be less than 7.0),
Arkansas, Florida, Georgia, Kentucky, Louisiana, Missouri
(Bootheel region only), Mississippi (except the “Black Belt”
Important: Crops other than soybeans or peanuts
planted the season following a CLASSIC® application
can vary in their sensitivity to low concentrations of
CLASSIC® remaining in the soil.
• Postemergence, use a minimum of 10 gal water per acre.
Under heavy weed pressure or dense crop foliage,
increase minimum spray volume to 15-25 gal per acre.
F
or best performance, select nozzle and pressure
combinations that deliver medium to coarse spray
droplets, as indicated, for example, by ASAE standard
S572.
• Preemergence in soybeans, use a minimum of 10 gal
water per acre. For best performance, select nozzle and
pressure combinations that deliver coarse to very coarse
spray droplets, as indicated, for example, by ASAE
standard S572.
• For burndown applications of existing vegetation, use a
minimum of 15 gal water per acre. For large weeds
and/or heavy residue, increase gallonage to ensure
coverage. For best performance, select nozzle and
pressure combinations that deliver medium to coarse
spray droplets, as indicated, for example, by ASAE
standard S572.
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